From a cognitive perspective, a researcher who follows a psychometric approach is primarily interested in which of the following?

Of the following reasons, the LEAST likely to contribute to the differences between African Americans and white Americans in receiving long-acting stimulant drug treatment for ADHD is:

A) economic factors. B) social bias. C) stereotyping. D) differences in drug tolerance.

Asch (1951) used __________ to study informational conformity

a. the "autokinetic effect" b. the latency of response c. social loafing in a tug of war group d. line lengths