A recent meta-analytic study revealed that leader style and productivity were correlated only if the type of task facing the group was taken into account.

In 1960, almost half of all of the families in the United States were _______ families

a. nuclear b. step c. single-parent d. married without children e. unmarried with children

Online encyclopedias and dictionaries, database abstracts, and published statistics are examples of what kind of source?

A) primary B) tertiary C) secondary D) background E) media