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Educational and Psychological…2
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Chapman, David W.1
Guarnaccia, Charles A.1
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Yuan, Ke-Hai1
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A Study of the Distribution of Sample Coefficient Alpha with the Hopkins Symptom Checklist: Bootstrap versus Asymptotics.
Peer reviewed Peer reviewed
Yuan, Ke-Hai; Guarnaccia, Charles A.; Hayslip, Bert, Jr. – Educational and Psychological Measurement, 2003
Studied the sample coefficient alpha for each of the five subscales of the Hopkins Symptom Checklist (HSL; L. Derogaitis and others, 1974) in a sample of 419 adults. Findings show that the normal-theory-based distribution has a systematic bias in describing the behavior of the sample coefficient alpha. (SLD)
Descriptors: Adults, Reliability, Statistical Distributions
Expanding Analytic Possibilities of Rokeach Values Data.
Peer reviewed Peer reviewed
Chapman, David W.; And Others – Educational and Psychological Measurement, 1983
This study investigated the validity of Hayes's formula for converting rank-ordered Rokeach Values data to a normal distribution theoretically achieved through the use of rated data. Findings support the validity of Hayes's formula and expand the analytic possibilities of data collected on the Rokeach instrument. (Author/PN)
Descriptors: Adults, Correlation, Mathematical Formulas, Nonparametric Statistics