Which of the following is a poor internal accounting control feature?

The premise that people learn how to behave to get something that they want or to avoid something that they don't want is called

a. positive reinforcement. b. extinction. c. operant conditioning. d. continuous reinforcement. e. intermittent reinforcement.

If the samples used in the Mann-Whitney U test are from the same population, the distribution of scores from the two groups in the rank list should be ________

A) random B) u-shaped C) normal D) uniform