The measure of __________ refers to the degree to which the numbers in a data set differ from one another and from the overall average (or mean) of that data set

Comparisons of large and small schools reveal that:

A. small schools actually offer more varied curricula. B. students in large schools are more likely to participate in school activities. C. small schools have more material resources. D. students in small schools are more likely to participate in school activities

Psychologists typically consider a result to be significant if it would be expected to occur by chance _______ times in 100 repetitions of the study

a. 5 or fewer b. 10 or fewer c. 20 or fewer d. 40 or fewer