15. If the values associated with class year included first-year, sophomore, and
ID: 3452617 • Letter: 1
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15. If the values associated with class year included first-year, sophomore, and junior, but not senior, then the values would not be: a) mutually exclusive b) exhaustive. c) representative. d) reliable. 22. A researcher examines several items from a scale and finds that several of the items of a scale are not measuring the same construct (i.e., life satisfaction). The researcher has determined that the measure of life satisfaction does not have good: a) construct validity. b) Inter-item consistency c) Convergent validity. d) test-retest reliability. 23. A researcher is trying to establish criterion validity for his/her measure of optimism. As a result, she chooses a happiness scale that is likely to be associated moderately and positively with optimism and statistically assesses using a correlation coefficient the relationship between optimism scores and happiness scores in her sample's participants. S/he is trying to establish a) convergent b) content c) concurrent d) predictive validity. 24. A researcher administers an academic motivation scale in the fall semester and then again in the spring semester. The researcher finds that participants' scores are highly correlated and consistent with one another. This is evidence of a) inter-item b) inter-observer c) test-retest d) measurement reliability.Explanation / Answer
15.
Thevalues associated with class year if excludes final year class, then it wouldn't be representative of all the classes. To have representative values it should include all the classes of the year.
Answer: c) representative
16.
Validity that establishes similarity between the items of a construct is convergent validity. For construct validity it is necessary to determine how convergent or discriminative are construct in measuring the construct.
Answer. c). Convergent.
17.
Concurrent validity is a type of criterion validity. It assess the similarity between two values that are to be measured by using coefficient relationship.
Answer. c) concurrent.
18.
When a researcher wants to test the reliability of a test, they use test-retest method, in this method the test is repeated with the same group after an interval if some period or time.
Answer. c). test-retest.
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