Zobrazeno 1 - 10
of 152
pro vyhledávání: '"S. Feldt"'
Publikováno v:
Journal of Hospice & Palliative Nursing. 14:141-148
Autor:
Leonard S. Feldt
Publikováno v:
Educational and Psychological Measurement. 71:420-430
This article presents a simple, computer-assisted method of determining the extent to which increases in reliability increase the power of the F test of equality of means. The method uses a derived formula that relates the changes in the reliability
Autor:
Leonard S. Feldt, Seonghoon Kim
Publikováno v:
Asia Pacific Education Review. 11:179-188
The primary purpose of this study is to investigate the mathematical characteristics of the test reliability coefficient ρXX′ as a function of item response theory (IRT) parameters and present the lower and upper bounds of the coefficient. Another
Autor:
Seonghoon Kim, Leonard S. Feldt
Publikováno v:
Journal of Educational Measurement. 45:179-193
This article extends the Bonett (2003a) approach to testing the equality of alpha coefficients from two independent samples to the case ofm≥2independent samples. The extended Fisher-Bonett test and its competitor, the Hakstian-Whalen (1976) test, a
Autor:
Richard A. Charter, Leonard S. Feldt
Publikováno v:
Psychological Reports. 102:43-46
Suppose one has a battery of K subtests and a composite for the battery is defined as the mean of the K standardized subtest scores. An individual's single-subtest deviation score is the difference between the individual's score on any single subtest
Autor:
Seonghoon Kim, Leonard S. Feldt
Publikováno v:
Educational and Psychological Measurement. 66:589-600
Researchers sometimes need a statistical test of the hypothesis that two values of Cronbach's alpha reliability coefficient are equal. The situation may involve scores from two different measures administered to independent random samples or from the
Autor:
Richard A. Charter, Leonard S. Feldt
Publikováno v:
Educational and Psychological Measurement. 66:215-227
Seven approaches to averaging reliability coefficients are presented. Each approach starts with a unique definition of the concept of “average,” and no approach is more correct than the others. Six of the approaches are applicable to internal con
Autor:
Leonard S. Feldt
Publikováno v:
Educational and Psychological Measurement. 65:28-41
To meet the requirements of the No Child Left Behind Act, school districts and states must compile summary reports of the levels of student achievement in reading and mathematics. The levels are to be described in broad categories: “basic and below
Autor:
Leonard S. Feldt
Publikováno v:
Measurement and Evaluation in Counseling and Development. 37:184-190
In some settings, the validity of a battery composite or a test score is enhanced by weighting some parts or items more heavily than others in the total score. This article describes methods of est...