Researchers must be wary of _____ bias, which causes them to ignore evidence that contradicts their views

Classroom achievement tests are measures of

A) cognitive objectives. B) nonintellective objectives. C) psychomotor objectives. D) affective objectives.

When we compare different countries with respect to their preference for male babies, we find that

a. people in Canada have even stronger preferences for sons than do people in the United States. b. gender preferences are unpredictable; for example, females are preferred in India, but males are preferred in China. c. North America is the exception; in most countries, people typically are neutral about whether their child will be a boy or a girl. d. some Asian countries practice selective abortion, so that many more males are born than females.