PSYC 1200 Study Guide - Final Guide: Prenatal Development, Lev Vygotsky, Longitudinal Study

• School: University of Manitoba
• Department: Psychology
• Course: PSYC 1200
• Professor: -

Document Summary

In the concrete operational period (ages 7-11) children develop the ability to perform operations on mental representations. In a longitudinal study one group of subjects is observed repeatedly over time. In a cross-sectional group of subjects of varied ages are observed at a single point in time: cross-sectional studies are quicker and easier, but longitudinal studies can be more sensitive. Temperament: temperament refers to characteristic mood, activity level, and emotional reactivity. In a longitudinal study, thomas and chess found that temperament remains fairly stable as children grow up. Attachment: attachment emerges out of a complex interplay between infants and their caregivers. Harry harlow"s studies of infant monkeys showed that reinforcement is not the key to attachment. John bowlby has shown that attachment has a biological and evolutionary basis: research has shown that infant-mother attachments fall into four categories: secure, anxious-ambivalent, avoidant, and disorganized-disoriented.