Instructor Resource Furr, Psychometrics, 4e SAGE Publishing, 2022 Chapter 6: Empirical Estimates of Reliability Test Bank Multiple Choice 1. From the “alternate forms” approach to reliability, how do you estimate reliability? a. Create two versions of the same test, administer both forms to a single group of participants, and correlate the scores from the two forms. The correlation is your estimate of reliability. b. Create two versions of the same test, administer both forms to a single group of participants, and correlate the scores from the two forms. Multiply the correlation by two (to reflect the two forms), and that is your estimate of reliability. c. Create two versions of the same test, administer both forms to a single group of participants, and compute the mean score on each version. The difference between the means reflects the reliability of the test. d. Create several alternate versions of the same test and determine which one is the best. Estimate the reliability of that test, and it’s the best estimate for the entire test. Ans: A Learning Objective: 6-1: Summarize how alternate forms reliability is used for estimating the reliability of test scores. Cognitive Domain: Comprehension Answer Location: Alternate Forms Reliability Difficulty Level: Medium 2. For the alternate forms to produce an accurate estimate of reliability, some things have to be true. What must be true for this approach to produce an accurate estimate of reliability? a. the versions must include the same items b. there must be carryover effects (in which error scores from one version are correlated with error scores from the other version) c. there must be *no* carryover effects (in which error scores from one version are correlated with error scores from the other version) d. error scores on each version must be specific Ans: C Learning Objective: 6-1: Summarize how alternate forms reliability is used for estimating the reliability of test scores. Cognitive Domain: Comprehension Answer Location: Alternate Forms Reliability Difficulty Level: Medium 3. If error scores are positively correlated across the versions of a test (e.g., due to carryover effects), then the alternate forms approach will produce an estimate of reliability that is:
Psychometrics: An Introduction 4th Edition R. Michael Furr ISBN 9781071824085, 1071824082. All Chapt
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