The distinguishing characteristic of a time-series design is
a) Repeated measurement before and after a treatment
b) Effective control of statistical regression
c) Control of time factors that may affect the results
d) That the same subgroups are studied over a long period of time
A
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Andrea decided that as a reward for completing her math homework, she would listen to some music. The self-management strategy that Andrea used was
a. self-evaluating. b. self-instruction. c. self-monitoring. d. self-reinforcement.
You lead a product-testing unit for a large sports nutrition company. Your team has conducted forty trials of a new energy supplement but you are not sure if the results are conclusive enough to urge the company to start producing it. A new data analyst has joined your team suggesting that meta-analysis might be a good idea, do you agree?
A. No, because the forty trials were identical and tested the same research question we cannot calculate an average significance for the new supplement. B. No, because the forty trials were identical and tested the same research question we cannot calculate an average effect size for the new supplement. C. Yes, because the forty trials were identical and tested the same research question and therefore we can calculate an average significance for the new supplement. D. Yes, because the forty trials were identical and tested the same research question and therefore we can calculate an average effect size for the new supplement.
Which of the following is primarily a question of professional ethics?
a. Are the conclusions justified by the evidence in the study? b. Are the relationships to be investigated logically implied by the hypothesis? c. Could the difference between groups have been a function of chance? d. Is the population involved in the study precisely described? e. Is evidence that does not agree with the hypothesis omitted?
When students' test scores are—as predicted—correlated positively with those students' scores on a test aimed at a similar measurement mission, of what is this an example?
A. Construct-irrelevant variance B. Divergent validity evidence C. Convergent validity evidence D. Construct underrepresentation