Developmental
Psychology Study Guide
2026 | Practice Questions,
Answers, Rationales &
Exam Review
Updated Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, Developmental Psychology a branch of psychology that studies physical, cognitive, and social change
throughout the life span.
Zygote the fertilized egg; it enters a 2-week period of rapid cell division and develops into
an embryo.
Embryo the developing human organism from about 2 weeks after fertilization through the
second month.
Fetus the developing human organism from 9 weeks after conception to birth.
Teratogens agents, such as chemicals and viruses, that can reach the embryo or fetus during
prenatal development and cause harm.
Fetal Alcohol Syndrome (FAS) physical and cognitive abnormalities in children caused by a pregnant woman's
heavy drinking. In severe cases, symptoms include noticeable facial misproportions.
Habituation decreasing responsiveness with repeated stimulation. As infants gain familiarity with
repeated exposure to a visual stimulus, their interest wanes and they look away
sooner.