Data from 1,376 respondents on a 1994 scale to measure depressive and manic experiences devised by Thalbourne, Delin, and Basset (1994) were analyzed. Internal consistency reliability estimates for the Total scale (.66), the Depressive subscale (.63), and the Manic subscale (.45) were poor to marginal, and a confirmatory factor analysis did not support the two-subscale structure of the scale. These results, considered in conjunction with those of previous psychometric analyses of the Manic-Depressive Scale, cast doubt on its usefulness for research and clinical use.
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References
1.
Abdel-KhalekA., & LesterD. (2005a) Factorial structure of the Manic-Depressiveness Scale in American college students. Psychological Reports, 96, 603–604.
2.
Abdel-KhalekA., & LesterD. (2005b) The factorial structure of short scales measuring manic-depression in Kuwaiti undergraduates. Psychological Reports, 97, 128.
3.
PedhazurE. J., & SchmelkinL. P. (1991) Measurement, design, and analysis: an integrated approach.Hillsdale, NJ: Erlbaum.
4.
ThalbourneM. A.DelinP. S., & BassettD. L. (1994) An attempt to construct short scales measuring manic-depressive-like experience and behaviour. British Journal of Clinical Psychology, 33, 205–207.
5.
ZinbargR. E.RevelleW.YovelI., & LiW. (2005) Cronbach's α, Revelle's β, and McDonald's ωh: their relations with each other and two alternative conceptualizations of reliability. Psychometrika, 70, 123–133.
