The founder of Gestalt psychology and pioneer of insight problem solving was:

Agatha Harkness-Smythe is determined to ban guns in the United States. This is a controversial topic and social scientists have debated whether the ownership of guns by citizens increases or decreases crime

Agatha could go to the library and look up studies on the linkage between guns and crime rates. Instead, Agatha just reads the local newspaper and only cuts out articles about robberies in which the "bad guy" used a firearm. Agatha is demonstrating: A) mental set B) confirmation bias C) stereotype threat D) mindlessness

Kirkcaldy, Shepard, and Furnham examined the relationship between locus of control and job performance and found that:

a. internals were less satisfied with their jobs than externals b. internals experienced more stress on their jobs than externals c. internals reported being more autonomous and having more control over their jobs than externals d. externals never thought of quitting their jobs