Color and brightness constancy are best explained by the ____ theory of color vision

The psychodynamic model holds that abnormal behavior is the result of ______

a) learning b) repressed thoughts, memories, and concerns c) biology d) biochemical imbalances

A researcher stops people at the mall and asks them questions about their attitudes toward gun control. Which research technique is being used?

a) survey b) experiment c) case study d) naturalistic observation