Confidence interval formulas for the Spearman-Brown and the two-part coefficient alpha are presented.
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References
1.
CharterR. A. (1996) Note on the underrepresentation of the split-half reliability formula for unequal standard deviations. Perceptual and Motor Skills, 82, 401–402.
2.
CharterR. A. (1997) Confidence interval procedures for retest, alternate-forms, validity, and alpha coefficients. Perceptual and Motor Skills, 84, 1488–1490.
3.
CharterR. A., & LarsenB. S. (1983) Fisher's z to r. Educational and Psychological Measurement, 43, 41–42.
4.
FeldtL. S., WoodruffD. J., & SalihF. A. (1987) Statistical inference for coefficient alpha. Applied Psychological Measurement, 11, 93–103.
5.
KristofW. (1970) On the sampling theory of reliability estimation. Journal of Mathematical Psychology, 7, 371–377.