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Direct linkRyan M. Cook; Stefanie A. Wind – Measurement and Evaluation in Counseling and Development, 2024
The purpose of this article is to discuss reliability and precision through the lens of a modern measurement approach, item response theory (IRT). Reliability evidence in the field of counseling is primarily generated using Classical Test Theory (CTT) approaches, although recent studies in the field of counseling have shown the benefits of using…
Descriptors: Item Response Theory, Measurement, Reliability, Accuracy
Vacha-Haase, Tammi; Thompson, Bruce – Measurement and Evaluation in Counseling and Development, 2011
The present study was conducted to characterize (a) the features of the thousands of primary reports synthesized in 47 reliability generalization (RG) measurement meta-analysis studies and (b) typical methodological practice within the RG literature to date. With respect to the treatment of score reliability in the literature, in an astounding…
Descriptors: Reliability, Generalization, Scores, Meta Analysis
Peer reviewedOnwuegbuzie, Anthony J.; Daniel, Larry G. – Measurement and Evaluation in Counseling and Development, 2002
This article provides a framework for reporting internal consistency reliability in counseling research and other related social science fields, including guidelines relative to score reliability coefficients and associated confidence intervals for both full sample and subgroups. Follow-up techniques for investigating low score reliability are…
Descriptors: Error of Measurement, Psychometrics, Reliability, Research Methodology
Peer reviewedHenson, Robin K.; Thompson, Bruce – Measurement and Evaluation in Counseling and Development, 2002
T. Vacha-Haase (1998) proposed her "reliability generalization" methodology to characterize (a) typical score reliability for a measure across studies, (b) the variability of score reliabilities, and (c) what measurement protocol features predict the variability in score reliabilities across administration. The present article provides…
Descriptors: Error of Measurement, Generalization, Psychometrics, Research Methodology
Peer reviewedWeems, Gail H.; Onwuegbuzie, Anthony J. – Measurement and Evaluation in Counseling and Development, 2001
Counselors conducting survey research have many item format options to contemplate. This study examined midpoint selection and the effect on reliability of including or excluding midpoint options, and using both positively and negatively worded items. Findings indicate that reliability can be affected by both midpoint options and reverse coding.…
Descriptors: Coding, Data Analysis, Item Analysis, Questionnaires
Peer reviewedHenson, Robin K. – Measurement and Evaluation in Counseling and Development, 2001
Although often ignored, reliability is critical when interpreting study effects and test results. Accordingly, this article focuses on the most commonly used estimate of reliability, internal consistency coefficients, with emphasis on coefficient alpha. An interpretive framework is provided for applied researchers and others seeking a conceptual…
Descriptors: Error of Measurement, Item Analysis, Reliability, Research Methodology
Peer reviewedCharter, Richard A.; Feldt, Leonard S. – Measurement and Evaluation in Counseling and Development, 2002
Presented is a detailed description of two true score confidence interval approaches, their use, interpretation, and a philosophical conflict that arises in many applied instances. (Contains 27 references.) (Author)
Descriptors: Error of Measurement, Psychometrics, Research Methodology, Statistical Analysis
