A general aptitude test correlates .45 with success in a particular college. To improve the predictive accuracy, the students are also given three other aptitude measures, all of which correlate very highly with one another and with the first test. What will be the likely effect of adding the scores from the three additional tests to the regression equation?
a. Predictive accuracy will significantly improve.
b. Only a very small improvement will occur.
c. Predictive accuracy will decrease slightly.
d. Cannot estimate from the information given.
B
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The industries with the most new jobs are:
A. individual and family services. B. warehousing and storage. C. food services and drinking places. D. hospitals and outpatient care centers.
If a study involves risk to the participants, the researcher is not required to:
A. remain available after participation should concerns arise. B. explain unknown risks. C. allow the participant to withdraw any time they wish to do so. D. clarify all procedures to be used ahead of time.
Select the type of research which is most appropriate for the question "Do ethnic minority college students view general education courses as useful?"
A. Causal-comparative research B. Correlational research C. Experimental research D. Survey research
The word accuracy criterion for the instructional level for running records is _____ %
a. 85-90 b. 90-92 c. 90-94 d. 95-98