Study Guide—Adolescence A-Z a schema accommodation Albert Bandura amygdala. amygdala. Assimilation B. F. Skinner Big Five Factors of personality Carol Gilligan classificationconservation corpus callosum. corpus callosum. correlation versus causation in research Erikson Ethnic identity formal operational thinking Freud G. Stanley Hall Harter hypothetical-deductive reasoningI identity development Lawrence Kohlberg leading causes of death for Marcia Margaret Mead menarche Metacognition Myelination Neurons Piaget prefrontal cortex. prefrontal cortex. Puberty puberty sex hormones spatial reasoning The endocrine system Uri Bronfenbrenner Vygotsky