For a variable that is normally distributed with a mean of 100 and a standard deviation of 25, approximately ______ of the scores are between ______ and ______.
a. 68%; 75 and 125
b. 68%; 50 and 150
c. 95%; 100 and 150
d. 95%; 100 and 200
a. 68%; 75 and 125
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The forerunner to the AAIDD, originally called the Association of Medical Officers of American Institutions for Idiotic and Feeble-Minded Persons, was founded in which year?
a. 1912 b. 1976 c. 1876 d. 1895
Which technique seems to have the greatest effect on increasing the response rate of questionnaire studies?
a. implementing a follow-up. b. giving the respondent realistic time cues about completing the questionnaire. c. including a short cover letter. d. using different colors for the pages of the questionnaire.
A pilot study is helpful
a. if the results of a research study do not support the research hypotheses. b. only if the study will involve quantitative methodology. c. only if the study will involve qualitative methodology. d. in convincing others that the research study is viable.
Which of the following is the best description of motivation?
a. The process of meeting personal needs b. The energizing force behind student learning c. Being reinforced for desirable behavior d. The process of making learning fun