Initial ejaculations usually contain enough sperm to fertilize an egg

The original purpose of the MMPI was to

a. identify the major personality types. b. screen applicants for industrial jobs. c. identify students who needed special remediation in their studies. d. identify personality traits related to mental health. e. provide an objective way to relate personality to intelligence.

In the Kim et al. Study(Oh Rats!) what was the procedure?

(a) different rat breeds attempted to navigate a water maze (b) rats depressed a lever to receive a food pellet (c) random assignment of pregnant female rats to different food consumption conditions (d) female rats were artificially impregnated