COSC 622 Quiz Reliability and Validity

COSC 622 Quiz: Reliability and Validity

1. A researcher wants to measure internal consistency in a test that measures two different constructs (self-esteem and depression) without subdividing the items into the two construct groupings. Which of the following would be the best method to use in measuring internal consistency?
2. A researcher wants to measure content-sampling error with a Likert scale test. Which of the following methods would be best?
3. If the reliability coefficient of a test is determined to be .27, what percentage is attributed to random chance or error?
4. You are reading about reliability of a test in the test manual and notice that the researchers report using a Spearman-Brown coefficient. You can infer that internal consistency reliability was measured using:
5. A researcher wants to measure content-sampling error and has two versions of an achievement test available. What measure of estimating reliability would be best in this situation?
6. The test manual reports a reliability coefficient (r) of .92, which means:
7. A researcher is concerned with measuring internal consistency reliability and has decided to use the Kuder- Richardson Formulas with a Likert scale test; this is a problem because the:
8. The SEM for an achievement test is 2.45. Johnny scores 100 and we assume that 68% of the time his true score falls between + 1 SEM; this means the confidence interval would be between:
9. You are attempting to account for a time sampling error and decide to administer the test a second time. In discussing reliability, you report this as what method of estimating reliability?
10. Jose has developed a test that has poor reliability; he can seek to increase reliability by:
11. Comparing pre and post-test scores of two groups – one group that experienced an intervention and one group that did not – is an example of:
12. To evaluate a content validity evidence, test developers may use:
13. Exploratory factor analysis can be used to:
14. _______________ are concepts, ideas, or hypotheses that cannot be directly measured or observed.
15. When discussing the relationship between reliability and validity, which of the following is true?
16. The _______________ is characterized by assessing both convergent and discriminant validity evidence and displaying data on a table of correlations.
17. The goal of factor analysis is to:
18. The tripartite view of validity includes content validity, criterion validity, and:
19. What information is included on a Multitrait-Multimethod Matrix?
20. is calculated by correlating test scores with the scores of tests or measures that assess the same construct.