326

You should know the definitions of the following key terms from the chapter. They are listed in the order in which they appear in the chapter. For those you do not know, return to the relevant section of the chapter to learn them.

developmental psychology

zygote

gene

chromosomes

identical (monozygotic) twins

fraternal (dizygotic) twins

teratogens

fetal alcohol syndrome (FAS)

sucking reflex

rooting reflex

habituation

phonemes

baby talk (parentese)

babbling

holophrase

overextension

underextension

telegraphic speech

assimilation

accommodation

sensorimotor stage

object permanence

preoperational stage

egocentrism

conservation

reversibility

centration

concrete operational stage

formal operational stage

information-processing approach to cognitive development

zone of proximal development

scaffolding

cross-sectional study

longitudinal study

cohort effects

preconventional level of moral reasoning

conventional level of moral reasoning

postconventional level of moral reasoning

attachment

secure attachment

insecure-avoidant attachment

insecure-ambivalent attachment

insecure-disorganized (disoriented) attachment

temperament

authoritarian parenting

authoritative parenting

permissive parenting

uninvolved parenting

theory of mind