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correction for attenuation
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the monte carlo experiment examined the effects of the type of reliability and the properties of likert-type rating scales on correlations corrected for attenuation. the independent variables manipulated included number of response categories, inter-item covariance, number of items, respondents’ judgment accuracy (or reliability of individual item), correlations between true score items across measures, and distribution of scores of the rating scales. the quality of the pearson product-moment correlations corrected for attenuation by the internal consistency reliability α, the test-retest reliability, and the squared correlation between true scores and observed scores were compared. the correlation corrected by internal consistency reliability α was found to be higher than the population value when items were less homogeneous. the correlations corrected by the other two types of reliability, in general, yielded less biased results.
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2004
評定量表相關係數校正影響因素之模擬研究
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2001
點數對評定量表信度與效度影響之模擬研究(I)
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2000
點數與標示語對評定量尺反應的影響(II)
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