The WAIS produces scores in _____ different areas of intelligence

Research on group size suggests that

a. the larger the group, the greater the individual productivity. b. increasing group size beyond nine creates complexity that may limit group performance. c. limiting group size to three helps foster diverse thinking in the group. d. an even number of group members will force faster conflict resolution. e. an uneven number of group members may force greater consensus in decision-making.

Which of these substances has the highest lifetime estimate of dependence?

A. LSD B. marijuana C. alcohol D. nicotine