Alpha coefficient - PowerPoint PPT Presentation

THE INTERNATIONAL DATING VIOLENCE STUDY *

THE INTERNATIONAL DATING VIOLENCE STUDY *. A STUDY OF UNIVERSITY STUDENTS IN 34 COUNTRIES. The work was supported by National Institute of Mental Health grant T32MH15161 and the University of New Hampshire.

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Chronbach’s Alpha

Chronbach’s Alpha. Ginnie Bushong. Chronbach Alpha. Also known as Alpha Coefficient An internal consistency or reliability coefficient for an instrument requiring only one test administration. General form of the KR20 formula. KR20 Formula. a = (k/k-1)(1-( Σ s i 2 /s t 2 )) When:

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