One of the motor patterns in which girls generally outperform boys is

Pain

a. can be purely psychological in nature. b. that is most severe and leads people to go to the doctor is objective (e.g., involves tissue damage) rather than subjective. c. is not influenced by ethnicity, but only degree of acculturation.. d. Does not seem to be influenced by sex.

Researchers must be careful to include participants in their studies who represent the entire possible distribution of performance on both the test and the criterion to avoid

a. practice effects. b. multicultural bias. c. restriction of range. d. criterion contamination