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Related Concept Videos

Life Histories01:29

Life Histories

Constrained by limited energy and resources, organisms must compromise between offspring quantity and parental investment. This trade-off is represented by two primary reproductive strategies; K-strategists produce few offspring but provide substantial parental support, whereas r-strategists produce much progeny that receives little care. These strategies are related to an organism’s survival likelihood across its lifespan, which is represented by a survivorship curve. Three general types of...
Marcia's Theory of Identity Status01:26

Marcia's Theory of Identity Status

James Marcia's identity status model provides a framework for understanding how adolescents navigate identity formation through varying degrees of exploration and commitment. Marcia's model builds on Erik Erikson's theories of psychosocial development, focusing specifically on how adolescents reconcile individual aspirations with societal expectations. His model describes identity formation as a dynamic process where adolescents move between different states depending on their level of...
Longitudinal Research02:20

Longitudinal Research

Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
Emerging Adulthood01:27

Emerging Adulthood

Jeffrey Arnett's concept of emerging adulthood offers a framework to understand the unique developmental stage between adolescence and full-fledged adulthood, generally from ages 18 to 25. This period is marked by extensive exploration and shifts in identity, relationships, and career choices, a process known in psychology as role experimentation. Emerging adulthood reflects the evolving cultural expectations surrounding adulthood and the dynamic process of personal transformation during this...
Erikson's Theory on Socioemotional Development during Adolescence01:17

Erikson's Theory on Socioemotional Development during Adolescence

Erik Erikson's fifth stage of psychosocial development, "identity versus role confusion," is crucial during adolescence (ages 12 to 18). In this stage, adolescents face the developmental task of forging a distinct personal identity, a process influenced by social, psychological, and biological changes typical of this period. Adolescents naturally explore different roles, behaviors, and ideologies as they navigate complex questions of self-concept, asking, "Who am I?" and "What is my place in...
Erikson's Theory on Socioemotional Development during Adulthood01:27

Erikson's Theory on Socioemotional Development during Adulthood

Erik Erikson's theory of psychosocial development outlines a series of stages through which individuals progress across the lifespan. Each stage involves a psychosocial conflict that significantly influences personal growth and well-being. Three key stages — intimacy versus isolation, generativity versus stagnation, and integrity versus despair — highlight the developmental challenges faced in adulthood.
Intimacy Versus Isolation in Early Adulthood
Individuals in early adulthood, from the 20s...

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Related Experiment Video

Updated: Jun 21, 2026

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills
06:52

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills

Published on: September 17, 2019

Why Do Different Individuals Progress Along Different Life Trajectories?

Gregory T Smith1

  • 1University of Kentucky gsmith@email.uky.edu.

Perspectives on Psychological Science : a Journal of the Association for Psychological Science
|August 13, 2009
PubMed
Summary
This summary is machine-generated.

Advancing psychological science requires comprehensive models explaining individual life trajectories to improve human welfare. Future research will focus on gene-environment interactions, universal/contextual factors, and precise measurement of psychological constructs.

More Related Videos

Exploring Life History Choices: Using Temperature and Substrate Type as Interacting Factors for Blowfly Larval and Female Preferences
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Exploring Life History Choices: Using Temperature and Substrate Type as Interacting Factors for Blowfly Larval and Female Preferences

Published on: November 17, 2023

Related Experiment Videos

Last Updated: Jun 21, 2026

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills
06:52

Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills

Published on: September 17, 2019

Exploring Life History Choices: Using Temperature and Substrate Type as Interacting Factors for Blowfly Larval and Female Preferences
12:14

Exploring Life History Choices: Using Temperature and Substrate Type as Interacting Factors for Blowfly Larval and Female Preferences

Published on: November 17, 2023

Area of Science:

  • Psychological Science
  • Behavioral Science

Background:

  • Human welfare is the primary metric for progress in psychological science.
  • Developing comprehensive models is crucial for understanding diverse individual life trajectories.

Purpose of the Study:

  • To outline key areas for future research in psychological science.
  • To emphasize the need for integrated models from genetic to behavioral levels.

Main Methods:

  • Theoretical analysis of emerging accounts on transitional processes.
  • Identification of research opportunities in psychological development.

Main Results:

  • Emerging theoretical accounts bridge gene polymorphisms to moment-to-moment behavior.
  • Opportunities exist to study specific transitional steps in development.
  • Understanding universal and contextual psychological aspects is highlighted.

Conclusions:

  • Future research should focus on precise measurement of psychological constructs.
  • Investigating transitional steps and contextual factors will drive progress.
  • Integrated models are essential for enhancing human welfare through psychological science.