Psychometrics: An Introduction 4th Edition R. Michael Furr ISBN 9781071824085, 1071824082. All Chapt

Instructor Resource Furr, Psychometrics, 4e SAGE Publishing, 2022 Chapter 7: The Importance of Reliability Test Bank Multiple Choice 1. What is the best definition of a “point estimate” of a true score? a. the range of values within which we strongly believe the person’s true score is likely to be located b. our best guess about a test taker’s actual standing on a particular psychological attribute c. our best guess of the actual reliability of a set of test scores d. the point at which an individual’s true score is greater than the amount of error affecting her/his observed score Ans: B Learning Objective: 7-1: Describe how reliability affects the confidence, accuracy, and precision with which an individual’s true score is estimated.

Cognitive Domain: Knowledge Answer Location: Applied Behavioral Practice: Evaluation of an Individual’s Test Score Difficulty Level: Easy 2. When using an “adjusted true score estimate,” how does an individual’s estimated true scores compare to their observed (unadjusted) scores? a. The estimated true score will generally be lower than the individual’s observed score. b. The estimated true score will generally be higher than the individual’s observed score. c. The estimated true score will be less extreme (i.e., closer to the mean of observed scores) than the individual’s observed score. d. The estimated true score will be more extreme (i.e., further away from the mean of observed scores) than the individual’s observed score.

Ans: C Learning Objective: 7-1: Describe how reliability affects the confidence, accuracy, and precision with which an individual’s true score is estimated.

Cognitive Domain: Comprehension Answer Location: Point Estimates of True Scores Difficulty Level: Medium 3. Say that a confidence interval around a true score was 950 to 1050. Which is the best interpretation of these values? a. We are 95% confident that the child’s observed score falls between 950 and 1050. b. We are 95% confident that the child’s true score lies between 950 and 1050. c. The true score is likely to be statistically significant if it is in the range of 950 to 1050. d. The true score is unlikely to be statistically significant if it is in the range of 950 to 1050.