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When Thurstone and Likert Agreea Confounding of MethodologiesAlcoholism & Drug Addiction Research Foundation Toronto, Ontario, Canada
Alcoholism & Drug Addiction Research Foundation Toronto, Ontario, Canada Failure to execute Thurstone Equal-Appearing Internal Scaling procedures led to an examination of the logic of these procedures and their relationship to Likert's Summated Ratings procedures. Evidence indicated that raters frequently confound Thurstone and Likert procedures, but this error is undetectable in a large number of cases. It was further demonstrated that detection of the confounding error depends upon the referent issue and the extremes of attitude held by raters.
Educational and Psychological Measurement, Vol. 37, No. 4,
811-818 (1977) |
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