________ is a perspective within psychology that emphasizes the potential for good that is innate to all humans.

Which of the following describes the relationship between two artificially dichotomous variables?

a. tetrachoric correlation b. factor analysis c. discriminant analysis d. multiple regression

In the Minnesota Study of Twins Reared Apart, identical twins were found to be

A. very similar in all characteristics studied, regardless of whether they were raised together or apart. B. similar in some characteristics studied, but not all, regardless of whether they were raised together or apart. C. similar in all characteristics studied only if they were raised together. D. similar in some characteristics studied, but not all, only if they were raised together.

Skinner found that a pigeon reinforced for pecking at a yellow disk is likely to peck at another disk similar in color. This is an example of _____

a) generalization. b) shaping. c) extinction. d) classical conditioning.

Judith is startled when her 6-year-old daughter, Laura, sleepwalks into the family room. It is most likely that Laura is experiencing the ________ stage of the sleep cycle

a) REM b) first c) second d) fourth