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Test Construction	2
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Educational and Psychological…

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Hambleton, Ronald K.	1
Solano-Flores, Guillermo	1

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Journal Articles	2
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Determining Optimal Test Lengths with a Fixed Total Testing Time.

Peer reviewed

Hambleton, Ronald K. – Educational and Psychological Measurement, 1987

This paper presents an algorithm for determining the number of items to measure each objective in a criterion-referenced test when testing time is fixed and when the objectives vary in their levels of importance, reliability, and validity. Results of four special applications of the algorithm are presented. (BS)

Descriptors: Algorithms, Behavioral Objectives, Criterion Referenced Tests, Test Construction

Item Structural Properties as Predictors of Item Difficulty and Item Association.

Peer reviewed

Solano-Flores, Guillermo – Educational and Psychological Measurement, 1993

Studied the ability of logical test design (LTD) to predict student performance in reading Roman numerals for 211 sixth graders in Mexico City tested on Roman numeral items varying on LTD-related and non-LTD-related variables. The LTD-related variable item iterativity was found to be the best predictor of item difficulty. (SLD)

Descriptors: Academic Achievement, Algorithms, Difficulty Level, Elementary School Students