Application of a psychometric rating model to ordered categories which are scored with successive integers
1978
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Application of a psychometric rating model to ordered categories which are scored with successive integers
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1978
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Abstract
A latent trait measurement model in which
ordered response categories are both parameterized
and scored with successive integers is investigated
and applied to a summated rating or Likert questionnaire.
In addition to each category, each item
of the questionnaire and each subject are parameterized
in the model; and maximum likelihood
estimates for these parameters are derived. Among
the features of the model which make it attractive
for applications to Likert questionnaires is that the
total score is a sufficient statistic for a subject’s attitude
measure. Thus, the model provides a formalization
of a familiar and practical procedure for
measuring attitudes.
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Andrich, David. (1978). Application of a psychometric rating model to ordered categories which are scored with successive integers. Applied Psychological Measurement, 2, 581-594. doi:10.1177/014662167800200413
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Andrich, David. (1978). Application of a psychometric rating model to ordered categories which are scored with successive integers. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/99456.
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