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Cited by 614

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Fitting a Response Model for n Dichotomously Scored Items

Bock, R. Darrell, Lieberman, Marcus·1970·Psychometrika

Abstract

A method of estimating the parameters of the normal ogive model for dichotomously scored item-responses by maximum likelihood is demonstrated. Although the procedure requires numerical integration in order to evaluate the likelihood equations, a computer implemented Newton-Raphson solution is shown to be straightforward in other respects. Empirical tests of the procedure show that the resulting estimates are very similar to those based on a conventional analysis of item “difficulties” and first factor loadings obtained from the matrix of tetrachoric correlation coefficients. Problems of testing the fit of the model, and of obtaining invariant parameters are discussed.

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Metadata

Authors
Bock, R. D., & Lieberman, M.
Venue
Psychometrika
Published
1970-06
Volume
35
Issue
2
Pages
179-197
ISSN
  • 0033-3123 (ISSN-L)
  • 1860-0980
OpenAlex
W2095342230
Cited by
614
References
1
FWCI
5.79
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Fitting a Response Model for n Dichotomously Scored Items. https://app.cochat.ai/papers/10.1007/bf02291262
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Bock, R. D., & Lieberman, M. (1970). Fitting a Response Model for n Dichotomously Scored Items. Psychometrika. https://doi.org/10.1007/bf02291262

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