Why do many professors prefer that students not use books as references for their papers?

In 1999, Richard Suinn became the first Asian American president of the American Psychological Association

Indicate whether the statement is true or false.

One theory that explains why children play such different types of games – from tag to playing house with dolls, from building brick towers to playing word games – suggests that

a. play helps children develop the skills that they need later in life. b. play helps children find out who their favorite "clique" of peers will be. c. play helps children relate to their parents by finding commonly enjoyed activities. d. play helps children individuate from their parents, by providing a task that requires no assistance or intervention.