Developmental Theories - Psychology
Contrast social classes with respect to life chances. Consider nutrition, living conditions, education, and healthcare when comparing these.
Identify unconditioned stimulus, conditioned stimulus, unconditioned response, and conditioned response in classical conditioning in an original example of a classically conditioned behavior.
Requirements. Provide title/reference page and citations. Double-spaced, 12-point font, 1-inch margins in APA Format. Word count: 200-250.
Reference:
Lifespan Psychology. Authored by: Laura Overstreet. Located at: http://opencourselibrary.org/econ-201/. License: CC BY: Attribution
Varying Definitions of Online Communication and
Their Effects on Relationship Research
Elizabeth L. Angeli
State University
Author Note
Elizabeth L. Angeli, Department of Psychology, State University.
Elizabeth Angeli is now at Department of English, Purdue University.
This research was supported in part by a grant from the Sample Grant
Program.
Correspondence concerning this article should be addressed to Elizabeth
Angeli, Department of English, Purdue University, West Lafayette, IN 55555.
Contact: [email protected]
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Running head: VARYING DEFINITIONS OF ONLINE COMMUNICATION 1
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VARYING DEFINITIONS OF ONLINE COMMUNICATION
2
Abstract
This paper explores four published articles that report on results from research conducted
on online (Internet) and offline (non-Internet) relationships and their relationship to
computer-mediated communication (CMC). The articles, however, vary in their
definitions and uses of CMC. Butler and Kraut (2002) suggest that face-to-face (FtF)
interactions are more effective than CMC, defined and used as “email,” in creating
feelings of closeness or intimacy. Other articles define CMC differently and, therefore,
offer different results. This paper examines Cummings, Butler, and Kraut’s (2002)
research in relation to three other research articles to suggest that all forms of CMC
should be studied in order to fully understand how CMC influences online and offline
relationships.
Keywords: computer-mediated communication, face-to-face communication
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VARYING DEFINITIONS OF ONLINE COMMUNICATION
3
Varying Definitions of Online Communication and
Their Effects on Relationship Research
Numerous studies have been conducted on various facets of Internet relationships,
focusing on the levels of intimacy, closeness, different communication modalities, and
the frequency of use of computer-mediated communication (CMC). However,
contradictory results are suggested within this research because only certain aspects of
CMC are investigated, for example, email only. Cummings, Butler, and Kraut (2002)
suggest that face-to-face (FtF) interactions are more effective than CMC (read: email) in
creating feelings of closeness or intimacy, while other studies suggest the opposite. To
understand how both online (Internet) and offline (non-Internet) relationships are affected
by CMC, all forms of CMC should be studied. This paper examines Cummings et al.’s
research against other CMC research to propose that additional research be conducted to
better understand how online communication affects relationships.
Literature Review
In Cummings et al.’s (2002) summary article reviewing three empirical studies on
online social relationships, it was found that CMC, especially email, was less effective
than FtF contact in creating and maintaining close social relationships. Two of the three
reviewed studies focusing on communication in non-Internet and Internet relationships
mediated by FtF, phone, or email modalities found that the frequency of each modality’s
use was significantly linked to the strength of the particular relationship (Cummings et
al., 2002). The strength of the relationship was predicted best by FtF and phone
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VARYING DEFINITIONS OF ONLINE COMMUNICATION
4
communication, as participants rated email as an inferior means of maintaining personal
relationships as compared to FtF and phone contacts (Cummings et al., 2002).
Cummings et al. (2002) reviewed an additional study conducted in 1999 by the
HomeNet project (see Appendix A for more information on the HomeNet project). In
this project, Kraut, Mukhopadhyay, Szczypula, Kiesler, and Scherlis (1999) compared
the value of using CMC and non-CMC to maintain relationships with partners. They
found that participants corresponded less frequently with their Internet partner (5.2 times
per month) than with their non-Internet partner (7.2 times per month) (as cited in
Cummings et al., 2002). This difference does not seem significant, as it is only two times
less per month. However, in additional self-report surveys, participants responded
feeling more distant, or less intimate, towards their Internet partner than their non-
Internet partner. This finding may be attributed to participants’ beliefs that email is an
inferior mode of personal relationship communication.
Intimacy is necessary in the creation and maintenance of relationships, as it is
defined as the sharing of a person’s innermost being with another person, i.e., self-
disclosure (Hu, Wood, Smith, & Westbrook, 2004). Relationships are facilitated by the
reciprocal self-disclosing between partners, regardless of non-CMC or CMC. Cummings
et al.’s (2002) reviewed results contradict other studies that research the connection
between intimacy and relationships through CMC.
Hu et al. (2004) studied the relationship between the frequency of Instant
Messenger (IM) use and the degree of perceived intimacy among friends. The use of IM
instead of email as a CMC modality was studied because IM supports a non-professional
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VARYING DEFINITIONS OF ONLINE COMMUNICATION
5
environment favoring intimate exchanges (Hu et al., 2004). Their results suggest that a
positive relationship exists between the frequency of IM use and intimacy, demonstrating
that participants feel closer to their Internet partner as time progresses through this CMC
modality.
Similarly, Underwood and Findlay (2004) studied the effect of Internet
relationships on primary, specifically non-Internet relationships and the perceived
intimacy of both. In this study, self-disclosure, or intimacy, was measured in terms of
shared secrets through the discussion of personal problems. Participants reported a
significantly higher level of self-disclosure in their Internet relationship as compared to
their primary relationship. In contrast, the participants’ primary relationships were
reported as highly self-disclosed in the past, but the current level of disclosure was
perceived to be lower (Underwood & Findlay, 2004). This result suggests participants
turned to the Internet in order to fulfill the need for intimacy in their lives.
In further support of this finding, Tidwell and Walther (2002) hypothesized CMC
participants employ deeper self-disclosures than FtF participants in order to overcome the
limitations of CMC, e.g., the reliance on nonverbal cues. It was found that CMC partners
engaged in more frequent intimate questions and disclosures than FtF partners in order to
overcome the barriers of CMC. In their 2002 study, Tidwell and Walther measured the
perception of a relationship’s intimacy by the partner of each participant in both the CMC
and FtF conditions. The researchers found that the participants’ partners stated their
CMC partner was more effective in employing more intimate exchanges than their FtF
VARYING DEFINITIONS OF ONLINE COMMUNICATION
6
partner, and both participants and their partners rated their CMC relationship as more
intimate than their FtF relationship.
Discussion
In 2002, Cummings et al. stated that the evidence from their research conflicted
with other data examining the effectiveness of online social relationships. This statement
is supported by the aforementioned discussion of other research. There may be a few
possible theoretical explanations for these discrepancies.
Limitations of These Studies
The discrepancies identified may result from a number of limitations found in the
materials reviewed by Cummings et al. These limitations can result from technological
constraints, demographic factors, or issues of modality. Each of these limitations will be
examined in further detail below.
Technological limitations. First, one reviewed study by Cummings et al. (2002)
examined only email correspondence for their CMC modality. Therefore, the study is
limited to only one mode of communication among other alternatives, e.g., IM as studied
by Hu et al. (2004). Because of its many personalized features, IM provides more
personal CMC. For example, it is in real time without delay, voice-chat and video
features are available for many IM programs, and text boxes can be personalized with the
user’s picture, favorite colors and text, and a wide variety of emoticons, e.g., :). These
options allow for both an increase in self-expression and the ability to overcompensate
for the barriers of CMC through customizable features, as stated in Tidwell and Walther
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VARYING DEFINITIONS OF ONLINE COMMUNICATION
7
(2002). Self-disclosure and intimacy may result from IM’s individualized features,
which are not as personalized in email correspondence.
Demographic limitations. In addition to the limitations of email, Cummings et
al. (2002) reviewed studies that focused on international bank employees and college
students (see Appendix B for demographic information). It is possible the participants’
CMC through email was used primarily for business, professional, and school matters
and not for relationship creation or maintenance. In this case, personal self-disclosure
and intimacy levels are expected to be lower for non-relationship interactions, as this
communication is primarily between boss and employee or student and professor.
Intimacy is not required, or even desired, for these professional relationships.
Modality limitations. Instead of professional correspondence, however,
Cummings et al.’s (2002) review of the HomeNet project focused on already established
relationships and CMC’s effect on relationship maintenance. The HomeNet researchers’
sole dependence on email communication as CMC may have contributed to the lower
levels of intimacy and closeness among Internet relationships as compared to non-
Internet relationships (as cited in Cummings et al., 2002). The barriers of non-personal
communication in email could be a factor in this project, and this could lead to less
intimacy among these Internet partners. If alternate modalities of CMC were studied in
both already established and professional relationships, perhaps these results would have
resembled those of the previously mentioned research.
VARYING DEFINITIONS OF ONLINE COMMUNICATION
8
Conclusions and Future Study
In order to gain a complete understanding of CMC’s true effect on both online
and offline relationships, it is necessary to conduct a study that examines all aspects of
CMC. This includes, but is not limited to, email, IM, voice-chat, video-chat, online
journals and diaries, online social groups with message boards, and chat rooms. The
effects on relationships of each modality may be different, and this is demonstrated by
the discrepancies in intimacy between email and IM correspondence. As each mode of
communication becomes more prevalent in individuals’ lives, it is important to examine
the impact of all modes of CMC on online and offline relationship formation,
maintenance, and even termination.
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VARYING DEFINITIONS OF ONLINE COMMUNICATION
9
References
Cummings, J. N., Butler, B., & Kraut, R. (2002). The quality of online social
relationships. Communications of the ACM, 45(7), 103-108.
Hu, Y., Wood, J. F., Smith, V., & Westbrook, N. (2004). Friendships through IM:
Examining the relationship between instant messaging and intimacy. Journal of
Computer-Mediated Communication, 10, 38-48.
Tidwell, L. C., & Walther, J. B. (2002). Computer-mediated communication effects on
disclosure, impressions, and interpersonal evaluations: Getting to know one
another a bit at a time. Human Communication Research, 28, 317-348.
Underwood, H., & Findlay, B. (2004). Internet relationships and their impact on primary
relationships. Behaviour Change, 21(2), 127-140.
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VARYING DEFINITIONS OF ONLINE COMMUNICATION
10
Appendix A
The HomeNet Project
Started at Carnegie Mellon University in 1995, the HomeNet research project has
involved a number of studies intended to look at home Internet usage. Researchers began
this project because the Internet was originally designed as a tool for scientific and
corporate use. Home usage of the Internet was an unexpected phenomenon worthy of
extended study.
Each of HomeNet’s studies has explored a different facet of home Internet usage,
such as chatting, playing games, or reading the news. Within the past few years, the
explosion of social networking has also proven to be an area deserving of additional
research. Refer to Table A1 for a more detailed description of HomeNet studies.
Table A1
Description of HomeNet Studies by Year
Year
of
Study
Contents
of
Study
1995-‐1996
93 families in Pittsburgh involved in school
or community organizations
1997-‐1999
25 families with home businesses
1998-‐1999
151 Pittsburgh households
2000-‐2002
National survey
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VARYING DEFINITIONS OF ONLINE COMMUNICATION
11
Appendix B
Demographic Information for Cummings et al. (2002)’s Review
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Developmental Theories
The Relationship between
and Research
What is a theory?
An explanation
Suggests what, how, or why
In development, it explains change
in us over time
A guideline for research
Helps us understand research
It is not a fact.
Theories of Motivation
Psychodynamic Theories
Freud’s Psychosexual
Theory: Background
Freud: (b.1856-
d.1939)
Hysteria
“talking cure”
early childhood
Mental illness and
reality
Defense Mechanisms
Repression
Regression
Rationalization
Denial
Sublimation
Displacement
Projection
Reaction Formation
Freud’s Parts of the Self
Id
Ego
Superego
Psychosexual
Development
Oral Stage
Anal Stage
Phallic Stage
Latency Stage
Genital Stage
Erikson’s Psychosocial
Theory
Student of
Freud’s
Emphasized the
Ego
Father of
Developmental
Psychology
Erikson’s First Four Stages
Trust vs. Mistrust
(infancy)
Autonomy vs.
Shame and Doubt
(toddlers)
Initiative vs. Guilt
(early childhood)
Industry vs.
Inferiority (middle
childhood)
Erikson’s Last Four Stages
Identity vs. Role
Confusion (teens)
Intimacy vs.
Isolation (early
adulthood)
Generativity vs.
Stagnation (midlife
adults)
Integrity vs. Despair
(late adults)
Test Yourself
Who is the father of developmental
psychology?
According to Freud, which part of the
self are we born with?
At what age do we establish a basic
sense of trust, per Erikson?
Name and describe one defense
mechanism.
When does the ego develop?
How would you test Freudian concepts?
Learning Theories
Focus on how we learn and
emphasizes behaviors that can be
seen rather than internal
motivation
Classical Conditioning
Ivan Pavlov
Learning through
association
Feelings or emotions
Gut level reactions of
the sympathetic and
parasympathetic
systems
Pavlov’s Dogs
One of Pavlov’s Dogs
(Robert K. Lawton)
Classical Conditioning Terms
Before conditioning
Unconditioned stimulus
Unconditioned response
After conditioning
Conditioned stimulus
Conditioned response
WHO CARES ABOUT
PAVLOV’S DOGS?
Watson and Behaviorism
Watson built on
Pavlov’s work
Parenting expert
in the 1920s
Kids can be
taught to love or
hate anything!
Little Albert
Who Else Cares?
ADVERTIZERS
Operant Conditioning
Why repeat
actions?
Law of Effect
Reinforcement
not criticism
Reinforcers
Reinforcer defined
Intrinsic or primary reinforcers
Extrinsic or secondary reinforcers
Primary or Secondary?
Food College Degree Money
Big House Hug Car
Job Compliment Award
Positive Reinforcers
Adding
An example?
How do you positively reinforce
others?
Negative Reinforcers
Subtraction
An example?
How do you negatively reinforce
others?
Punishment
Stopping behavior
Less effective than reinforcers.
Suppresses rather than stops
Doesn’t indicate desired behavior.
Leads to a focus on mistakes.
SOCIAL LEARNING THEORY
Social Learning Theory
Learn from others without
conditioning
Modeling
Albert Bandura and the Bobo Doll
Experiment on Aggression
How did you learn?
To kiss?
To drive?
To be afraid of the dark?
To do your job?
Cognitive Theories
How thinking changes over
time
Piaget’s Theory of
Cognitive Development
“father of
cognitive
psychology”
how children
think and reason
Maturation
Piaget’s Principles:
Equilibrium
Cognitive Equilibrium:
A balance between what we
see and what we know
Piaget’s Principles:
Schema
Schema:
Mental box containing a concept
Piaget’s Principles:
Assimilation
Assimilation:
Similarity between what we see
and what we already know
Piaget’s Principles:
Accommodation
Accommodation:
Changing our mind to adjust to
new people, objects, experiences,
etc.
Piaget’s Stages of
Cognitive Development
Sensorimotor (birth to 2)
Preoperational (early childhood)
Concrete operational (middle childhood)
Formal Operational (adolescence or
adulthood)
Sociocultural Theory:
Vygotsky
Cognitive abilities
change with
guidance
Scaffolding
Zone of Proximal
Development:
potential
Bronfenbrenner’s
Ecological Systems Model
A focus on context
The Ecological Systems Model
Microsystems
Mesosystems
Exosystems
Macrosystems
Chronosystems
Content Attribution
Except where expressly noted otherwise, the contents of this course are based on materials published in the
Open Course Library by Laura Overstreet. These materials were originally published freely under a Creative
Commons Attribution License (you can review the license at http://creativecommons.org/licenses/by/3.0/). The
original version of the materials as published as Psyc 200 Lifespan Development may be accessed for free
at http://opencourselibrary.org/econ-201/.
Lifespan Development
Lifespan Development
Lumen Learning
Lifespan Development Copyright © 2017 by Lumen Learning.
http://creativecommons.org/licenses/by/3.0/
http://opencourselibrary.org/econ-201/
CONTENTS
Module 1: Lifespan PsychologyModule 1: Lifespan Psychology...................................................................................................................................................................................................... 55
• Introduction to Life Span, Growth and Development ......................................................................................... 5
• The Cohort Effect............................................................................................................................................... 8
• Culture ............................................................................................................................................................. 11
• Periods of Development .................................................................................................................................. 13
• Research Methods........................................................................................................................................... 19
• Video: 49 Up .................................................................................................................................................... 21
• Video: Meet Neil .............................................................................................................................................. 21
• Lecture: Introduction to Life Span, Growth and Development ......................................................................... 21
• PowerPoint: Introduction to Life Span Development ....................................................................................... 25
• Discussion: Life Stages ................................................................................................................................... 26
Module 2: Developmental TheoriesModule 2: Developmental Theories...................................................................................................................................................................................... 2727
• Introduction to Developmental Theories .......................................................................................................... 27
• Psychodynamic Theory ................................................................................................................................... 29
• Psychosocial Theory........................................................................................................................................ 32
• Exploring Behavior........................................................................................................................................... 33
• Exploring Cognition.......................................................................................................................................... 37
• Research Designs ........................................................................................................................................... 39
• Lecture Transcript: Developmental Theories................................................................................................... 41
• Slideshow: Developmental Theories ............................................................................................................... 46
• Essay: Lifespan Psychology ............................................................................................................................ 47
Module 3: Prenatal DevelopmentModule 3: Prenatal Development ............................................................................................................................................................................................ 4848
• Introduction to Heredity, Prenatal Development, and Birth.............................................................................. 48
• Prenatal Development ..................................................................................................................................... 54
• Environmental Risks ........................................................................................................................................ 56
• Pregnancy........................................................................................................................................................ 59
• Childbirth.......................................................................................................................................................... 60
• Maternal Mortality ............................................................................................................................................ 63
• Video: Lifes Greatest Miracle ....................................................................................................................... 64
• Lecture: Prenatal Development ....................................................................................................................... 64
• Slideshow: Prenatal Development................................................................................................................... 68
• Study Guide: Introduction and Prenatal Development..................................................................................... 68
Module 4: InfancyModule 4: Infancy ............................................................................................................................................................................................................................................ 7070
• Introduction to Infancy ..................................................................................................................................... 70
• Physical Development ..................................................................................................................................... 71
• Nutrition ........................................................................................................................................................... 73
• Cognitive Development.................................................................................................................................... 75
• Language Development................................................................................................................................... 77
• Psychosocial Development and Attachment ................................................................................................... 79
• Temperament .................................................................................................................................................. 81
• Psychosocial Development.............................................................................................................................. 81
• Lecture: Infancy ............................................................................................................................................... 82
• Slideshow: Infancy........................................................................................................................................... 86
Module 5: Early ChildhoodModule 5: Early Childhood ................................................................................................................................................................................................................ 8888
• Introduction to Early Childhood........................................................................................................................ 88
• Physical Development ..................................................................................................................................... 90
• Cognitive Development.................................................................................................................................... 93
• Psychosocial Development.............................................................................................................................. 96
• Family Life ....................................................................................................................................................... 98
• Childhood Stress and Development .............................................................................................................. 101
• Lecture: Early Childhood ............................................................................................................................... 102
• Slideshow: Early Childhood ........................................................................................................................... 106
• Discussion: Labeling and Children ................................................................................................................ 106
• Essay: Childhood........................................................................................................................................... 107
Module 6: Middle ChildhoodModule 6: Middle Childhood ........................................................................................................................................................................................................ 108108
• Introduction to Middle Childhood ................................................................................................................... 108
• Physical Development ................................................................................................................................... 111
• Cognitive Development.................................................................................................................................. 112
• Kohlberg’s Stages of Moral Development ..................................................................................................... 115
• Developmental Problems............................................................................................................................... 116
• Learning and Intelligence............................................................................................................................... 119
• Psychosocial Development............................................................................................................................ 124
• Lecture: Middle Childhood ............................................................................................................................. 130
• Slideshow: Middle Childhood......................................................................................................................... 135
• Study Guide: Childhood................................................................................................................................. 135
• Practice Test: Childhood................................................................................................................................ 136
Module 7: AdolescenceModule 7: Adolescence ...................................................................................................................................................................................................................... 139139
• Introduction to Adolescense .......................................................................................................................... 139
• Physical Development ................................................................................................................................... 140
• Cognitive Development.................................................................................................................................. 141
• Social Development....................................................................................................................................... 142
• Lecture: Adolescence .................................................................................................................................... 148
• Slideshow: Adolescence................................................................................................................................ 151
Module 8: Early AdulthoodModule 8: Early Adulthood ............................................................................................................................................................................................................ 152152
• Introduction to Early Adulthood...................................................................................................................... 152
• Physical Development ................................................................................................................................... 155
• Cognitive Development.................................................................................................................................. 157
• Psychosocial Development............................................................................................................................ 159
• Types of Love ................................................................................................................................................ 165
• Activity: Love Attitude Scale .......................................................................................................................... 168
• Assignment: Love Styles ............................................................................................................................... 170
• Lecture: Early Adulthood ............................................................................................................................... 170
• Slideshow: Early Adulthood ........................................................................................................................... 173
• Essay Assignment: Adolescence and Early Adulthood ................................................................................. 174
• Study Guide: Adolescence and Early Adulthood ........................................................................................... 174
• Practice Test: Adolescence and Early Adulthood.......................................................................................... 175
Module 9: Middle AdulthoodModule 9: Middle Adulthood ........................................................................................................................................................................................................ 178178
• Introduction to Middle Adulthood ................................................................................................................... 178
• Physical Development ................................................................................................................................... 181
• Cognitive Development.................................................................................................................................. 184
• Psychosocial Development............................................................................................................................ 186
• Relationships ................................................................................................................................................. 189
• Work and Personality..................................................................................................................................... 193
• Lecture: Middle Adulthood ............................................................................................................................. 194
• Slideshow: Middle Adulthood......................................................................................................................... 198
Module 10: Late AdulthoodModule 10: Late Adulthood .......................................................................................................................................................................................................... 199199
• Introduction to Late Adulthood....................................................................................................................... 199
• Physical Development ................................................................................................................................... 203
• Cognitive Development.................................................................................................................................. 210
• Psychosocial Development............................................................................................................................ 211
• Relationships ................................................................................................................................................. 214
• Listen: Treating Delirium................................................................................................................................ 217
• Lecture: Late Adulthood................................................................................................................................. 217
• Slideshare: Late Adulthood............................................................................................................................ 220
• Additional Links.............................................................................................................................................. 221
Module 11: Death and DyingModule 11: Death and Dying ...................................................................................................................................................................................................... 222222
• Introduction to Death and Dying .................................................................................................................... 222
• Most Common Causes of Death.................................................................................................................... 224
• The Process of Dying .................................................................................................................................... 226
• Five Stages of Loss ....................................................................................................................................... 228
• Palliative Care and Hospice........................................................................................................................... 228
• Euthanasia..................................................................................................................................................... 231
• Bereavement and Grief.................................................................................................................................. 231
• Lecture: Death and Dying .............................................................................................................................. 233
• Slideshow: Death and Dying.......................................................................................................................... 235
• Additional Links.............................................................................................................................................. 235
• Essay: Middle and Late Adulthood ................................................................................................................ 235
• Study Guide: Middle and Late Adulthood ...................................................................................................... 236
• Practice Test: Middle and Late Adulthood ..................................................................................................... 237
MODULE 1: LIFESPAN PSYCHOLOGY
INTRODUCTION TO LIFE SPAN, GROWTH AND
DEVELOPMENT
Learning Objectives
At the end of this lesson, you should be able to:
1. Explain the study of human development.
2. Define physical, cognitive, and psychosocial development.
3. Differentiate periods of human development.
4. Analyze your own location in the life span.
5. Judge the most and least preferable age groups with which to work.
6. Contrast social classes with respect to life chances.
7. Explain the meaning of social cohort.
8. Critique stage theory models of human development.
9. Define culture and ethnocentrism and describe ways that culture impacts development.
10. Explain the reasons scientific methods are more objective than personal knowledge.
11. Contrast qualitative and quantitative approaches to research.
12. Compare research methods noting the advantages and disadvantages of each.
13. Differentiate between independent and dependent variables.
Welcome to life span, growth and development. This is the
study of how and why people change or remain the same over
time.
This course is commonly referred to as the “womb to tomb”
course because it is the story of our journeys from conception to
death. Human development is the study of how we change over
time. Although this course is often offered in psychology, this is
a very interdisciplinary course. Psychologists, nutritionists,
sociologists, anthropologists, educators, and health
care professionals all contribute to our knowledge of the life
span.
We will look at how we change physically over time from early
development through aging and death. We examine cognitive
change, or how our ability to think and remember changes
over time. We look at how our concerns and psychological state
is influenced by age and finally, how our social relationships
change throughout life.
There are several goals of those involved in this discipline:
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1. Describing changeDescribing change-many of the studies we will examine simply involve the first step in investigation, which
is description. Arnold Gesell’s study on infant motor skills, for example.
2. Explaining changesExplaining changes is another goal. Theories provide explanations for why we change over time. For
example, Erikson offers an explanation about why our two-year-old is temperamental.
Think about how you were 5, 10, or even 15 years ago. In what ways have you changed? In what ways have
you remained the same? You have probably changed physically; perhaps you’ve grown taller and become
heavier. But you may have also experienced changes in the way you think and solve
problems. Cognitive change is noticeable when we compare how 6 year olds, 16 year olds, and 46 year olds
think and reason, for example. Their thoughts about others and the world are probably quite different. Consider
friendship for instance. The 6 year old may think that a friend is someone with whom you can play and have fun.
A 16 year old may seek friends who can help them gain status or popularity. And the 46 year old may have
acquaintances, but rely more on family members to do things with and confide in. You may have also
experienced psychosocial change. This refers emotions and psychological concerns as well as social
relationships. Psychologist Erik Erikson suggests that we struggle with issues of independence, trust, and
intimacy at various points in our lives. (We will explore this thoroughly throughout the course.)
Our journeys through life are more than biological; they are shaped by culture, history, economic and political
realities as much as they are influenced by physical change. This is a very interesting and practical course
because it is about us and those with whom we live and work. One of the best ways to gain perspective on our
own lives is to compare our experiences with that of others. By periodically making cross-cultural and historical
comparisons and by presenting a variety of views on issues such as healthcare, aging, education, gender and
family roles, I hope to give you many eyes with which to see your own development. This occurs frequently in the
classroom as students from a variety of cultural backgrounds discuss their interpretations of developmental tasks
and concerns. I hope to recreate this rich experience as much as possible in this text. So, for example, we will
discuss current concerns about the nutrition of children in the United States (for a middle-class boy of 11 years
who is 130 pounds overweight and suffering with Pediatric Type II diabetes) as well as malnutrition experienced
by children in Ethiopia as a result of drought. Being self-conscious can enhance our ability to think critically about
the systems we live in and open our eyes to new courses of action to benefit the quality of life. And knowing about
other people and their circumstances can help us live and work with them more effectively. An appreciation of
diversity enhances the social skills needed in nursing, education, or any other field.
New Assumptions and UnderstandingsNew Assumptions and Understandings
I took my first graduate course in life span over 20 years ago. Much time was spent on the period of childhood,
less on adolescence, and very little attention was given to adulthood. The message was clear: once you are 25,
your development is essentially completed. Our academic knowledge of the life span has changed and although
there is still less research on adulthood than on childhood, adulthood is gaining increasing attention. This is
particularly true now that the large cohort known as the baby boomers are beginning to enter late
adulthood. There is so much we need to find out about love, housing, health, nutrition, exercise, social, and
emotional development with this large group. (Visit your local bookstore or search the internet and you will find
many new titles in the self-help and psychology sections that address this population.)
I was also introduced to the theories of Freud, Erikson, and Piaget, the classic stage theorists whose models
depict development as occurring in a series of predictable stages. Stage theories had a certain appeal to an
American culture experiencing dramatic change in the early part of the 20th century. But that sense of security
was not without its costs; those who did not develop in predictable ways were often thought of as delayed or
abnormal. And Freudian interpretations of problems in childhood development, such as autism, held that such
difficulties were in response to poor parenting. Imagine the despair experienced by mothers accused of causing
their child’s autism by being cold and unloving. It was not until the 1960s that more medical explanations of
autism began to replace Freudian assumptions.
Freud and Piaget present a series of stages that essentially end during adolescence. For Freud, we enter the
genital stage in which much of our motivation is focused on sex and reproduction and this stage continues
through adulthood. Piaget’s fourth stage, formal operational thought, begins in adolescence and continues
through adulthood. Again, neither of these theories highlights developmental changes during adulthood. Erikson,
however, presents eight developmental stages that encompass the entire lifespan. For that reason, Erikson is
known as the “father” of developmental psychology and his psychosocial theory will form the foundation for much
of our discussion of psychosocial development.
Today we are more aware of the variations in development and the impact that culture and the environment have
on shaping our lives. We no longer assume that those who develop in predictable ways are normal and those
who do not are abnormal. And the assumption that early childhood experiences dictate our future is also being
called into question. Rather, we have come to appreciate that growth and change continues throughout life and
experience continues to have an impact on who we are and how we relate to others. And we recognize that
adulthood is a dynamic period of life marked by continued cognitive, social, and psychological development.
Who Studies Human Development?Who Studies Human Development?
Many academic disciplines contribute to the study of life span and this course is offered in some schools as
psychology; in other …
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