A "good" measure of dispersion should
a. use all scores in a distribution.
b. describe the average or typical deviation of the scores.
c. be easy to calculate and interpret.
d. All of the above
ANSWER: d
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a. True b. False Indicate whether the statement is true or false
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Which of the following methods do researchers use to systematically collect data from respondents through questionnaires or interviews?
experiment method survey method participant observation secondary research