By the age of 4, children can remember events that occurred at least ____ earlier

Research on metamemory in elderly people shows that

a. in general, elderly people and young adults have similar beliefs about how their memory works. b. elderly people are less accurate than young adults in predicting which items on a list they will later remember. c. ironically, young adults are more likely than elderly adults to report problems with their memory. d. elderly people and young adults are equally likely to overestimate their total score on a memory test

Heritability refers to

a. the extent to which inherited genes are responsible for producing a particular trait. b. a measure of the contribution of genetics to the overall variability observed in a given trait in a population. c. the extent to which a person inherits a trait from his or her parents. d. genetic influence on a trait. e. the extent to which a particular trait will be transmitted to one's offspring.