Which of the following is a statistical method that explains variability in term

Question

Which of the following is a statistical method that explains variability in terms of other unobserved variables? A) Grouping B) Factor analysis C) Correlation coefficient D) Variance analysis E) Identification The measure of math ability should tell us how well a person may do as an engineering major. This is an example of which of the following? A) Standardization B) Normal curve C) Matching patterns D) Concurrent validity E) Predictive validity A final examination that tests one's command and comprehension of a given subject is said to have high A) predictive validity B) criterion-related validity C) content validity D) Test-retest reliability E) Split half reliability When researchers attempt to induce mild, temporary depression in research study participants, they often have the participants recite depressing statements. This strategy is often successful, but in some cases these people act differently from truly depressed individuals. From the given information, the described method of inducing depression may have problems with which of the following types of validity? A) Construct C) Internal E Convergent B) Divergent D) External . Which of the following is a threat to the external validity of a study or test? A) Attrition B) Testing C) Maturation

Explanation / Answer

1. The correct answer is Option B. Factor analysis is a statistical method that explains variability in terms of unobserved variables.

2. The correct answer is Option E. This is an example of predictive validity.

3. The correct answer is Option C. This an example of content validity.

4. The correct answer is Option A. This example may pose a problem for construct validity.

5.

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