For most of the twentieth century, psychologists were convinced that intelligence peaked in middle adulthood

Research by Segall and colleagues found that members of _________ cultures were more

susceptible to the Müller-Lyer illusion. a. primitive b. agrarian c. "fabricated" d. "carpentered" e. native

When 22-month-old Matteo exclaims, "Mamma, pick up!" he is demonstrating _____

a) an inability to properly process phonemes. b) an underextension error. c) an overregularization error. d) telegraphic speech.