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Estimating True-Score Distributions for Mental Tests (Methods 12,14, 15)

Author(s):
Lees, Diana M.; Lord, Frederic M.
Publication Year:
1967
Report Number:
RM-67-01
Source:
ETS Research Memorandum
Document Type:
Report
Page Count:
66
Subject/Key Words:
Office of Naval Research, Estimation (Mathematics), Mathematical Models, Score Distribution, True Scores

Abstract

As part of a continuing program for estimating the relation of true score to observed score, three new models were tried out, using data from many large-scale testing programs. The first model produced results of practical value for perhaps half of the sets of data. Two generalizations of the first model, without encouraging outcome, are summarized in appendices.

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