A sample is selected from a population with ? = 70, and a treatment is administered to the sample. After treatment, the sample mean is M = 74, and Cohen's d is d = 1.00 . What is the value of the sample variance?

A teammate struck out three times in the softball game last night. In applying the covariation principle to understand the cause of his performance, the "consistency" dimension refers to whether

a. others who played in the game also struck out. b. the pitcher was consistently overwhelming the batters. c. he would have performed better with a different pitcher. d. he has struck out often in the past.

A Skinner box is most likely to be used in research on _____

A) classical conditioning B) operant conditioning C) cognitive learning D) vicarious learning