In __________ tracing methods, a virus is injected directly into the brain, and it spreads to infected neurons, showing the path that the virus took.

When appropriate and desirable behaviors earn points or tokens that can later be exchanged for rewards, which of the following techniques is being used?

a) systematic desensitization b) a token economy c) the empty chair technique d) participant modeling

To examine the impact of group size on conformity behavior, Stanley has groups of two, five, or ten people stand on a city street and stare up at a window. Stanley then records the number of passersby who stop and stare at the window. This study is an example of a(n)

a. meta-analysis. b. archival study. c. experiment with one independent variable. d. experiment with two independent variables.