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Maximum Likelihood Estimates of Item Parameters using the Logistic Function

Published online by Cambridge University Press:  01 January 2025

A. E. Maxwell
A. E. Maxwell*
Affiliation:
Institute of Psychiatry, London University
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Abstract

The logistic function is proposed as an alternative to the integrated normal function when estimating parameters of test items. The logistic curve is described; an iterative method for finding maximum likelihood estimates of its parameters is given, and an example of its use is presented.

Information

Type
Original Paper
Information
Psychometrika , Volume 24 , Issue 3 , September 1959 , pp. 221 - 227
Copyright
Copyright © 1959 The Psychometric Society

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