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      Use Omega Rather than Cronbach’s Alpha for Estimating Reliability. But…

      1 , 2
      Communication Methods and Measures
      Informa UK Limited

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          Coefficient alpha and the internal structure of tests

          Psychometrika, 16(3), 297-334
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            From alpha to omega: a practical solution to the pervasive problem of internal consistency estimation.

            Coefficient alpha is the most popular measure of reliability (and certainly of internal consistency reliability) reported in psychological research. This is noteworthy given the numerous deficiencies of coefficient alpha documented in the psychometric literature. This mismatch between theory and practice appears to arise partly because users of psychological scales are unfamiliar with the psychometric literature on coefficient alpha and partly because alternatives to alpha are not widely known. We present a brief review of the psychometric literature on coefficient alpha, followed by a practical alternative in the form of coefficient omega. To facilitate the shift from alpha to omega, we also present a brief guide to the calculation of point and interval estimates of omega using a free, open source software environment. © 2013 The British Psychological Society.
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              The efficient assessment of need for cognition.

              A short form for assessing individual differences in need for cognition is described.
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                Author and article information

                Journal
                Communication Methods and Measures
                Communication Methods and Measures
                Informa UK Limited
                1931-2458
                1931-2466
                January 02 2020
                February 11 2020
                January 02 2020
                : 14
                : 1
                : 1-24
                Affiliations
                [1 ] Department of Psychology and School of Communication, Ohio State University, Columbus, Ohio, USA
                [2 ] Department of Psychology, Ohio State University, Columbus, Ohio, USA
                Article
                10.1080/19312458.2020.1718629
                37263340
                5589ff4a-3afb-47fc-bbe7-9d98b3112ee1
                © 2020
                History

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