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Developmental Science

researchers who study the lifespan


Scientific study of the adult part of life

Normative Transitions

Predictable life changes that occur during development

Non-normative Transitions

Unpredictable life changes that occur during development


Age group with whom we travel through life

Socioeconomic Status (SES)

A basic marker referring to status on educational and specially income world

Developed World

The most affluent countries in the world

Developing World

The more improvised countries of the world

Collectivist Cultures

Societies that prize social harmony, obedience, and close family connectedness over individual achievement


Societies that prize independence, competition, and personal success


Biological or genetic causes of development


Environmental causes of development

Traditional behaviorism

The original behavioral world view that focused on charting and modifying only "objective", visible behaviors

Operant Conditioning

The law of learning that determines any voluntary response


Behavioral term for reward

Cognitive Behaviorism

People learn by watching/ our thoughts reinforce our behavior

Attachment Theory

Theory made by John Bowlby; our surrival connected with a child giver during early childhood


The crucial principle that people affect one another, or that interpersonal flow in both directions

Piagets Cognitive Developmental Theory

Principle that form infancy to adolescence, children progress though four qualitatively different stages of intellectual growth


(first step in Piagets Theory) fitting environmental input to our existing mental capacities

Correlational Study

research strategy that involves relating two or more variable

True Experiments

The only research strategy that can determine that something causes something else; randomly assigning people to different treatments and looking at outcome.

Cross-sectional study

A developmental research strategy that involves testing different age groups at the same time

Longitudinal Study

Research strategy that involves testing an age group repeatedly over many years

Quantitive Research

Standard developmental science data-collection strategy that involves testing groups of people and using numerical scales and statistics

Qualitative Research

Occasional developmental science data-collection strategy that involves


The Pear-shaped muscular organ in a woman's abdomen that houses the developing baby


The neck, or narrow lower portion, of the uterus

Fallopian Tube

One pair of slim, pipe-like structure that connect the ovaries with the uterus


One pair of almond shared organs that contain a woman's ova, or eggs


An egg cell containing the genetic material contributed by the mother of the baby


The union of sperm and egg


The moment during a woman's monthly cycle when an ovum is expelled from the ovary


Male organs tat manufacture sperm


DNA strand located in nucleus of every cell that carries the genes


Material that makes up genes


A blueprint for manufacturing a particular protein

Germinal Stage

First 14 days of prenatal development


fertilized ovum


hollow sphere of cells formed during germinal stage in preparation for implantation


A blastocyst becomes embedded in the uterine wall


The structure projecting from the wall of the uterus during pregnancy thorough which the developing baby absorbs nutrients

Apgar Scale

Test after baby is born to check babys condition

Neonata Intensive Care Unit (NICU)

Special hospital that treats at-risk new borns

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