Both _____ and _____ are independent estimates of the population variance of scores in a

The ability of a test to measure what it sets out to measure is ________

a. reliability b. correlation coefficient c. standard deviation d. validity

The American Academy of Pediatrics suggests that boys and girls should engage in sports and games, and __________,

a) boys should play with boys b) girls should play with girls c) boys and girls should engage in sports and games in mixed-gender groups until puberty d) boys and girls should engage in sports and games in mixed-gender groups despite the onset of puberty