ERIC - Search Results

Descriptor

Mathematical Models	2
Statistical Distributions	2
Test Construction	2
Ability	1
Decision Making	1
Difficulty Level	1
Guessing (Tests)	1
Knowledge Level	1
Monte Carlo Methods	1
Multiple Choice Tests	1
Rating Scales	1
Reliability	1
Research Methodology	1
Retention (Psychology)	1
Scaling	1
Scoring	1
Test Items	1
Test Reliability	1
True Scores	1
More ▼

Source

Applied Measurement in…

Author

Feldt, Leonard S.	1
Schiel, Jeffrey L.	1
Shaw, Dale G.	1

Publication Type

Journal Articles	2
Reports - Evaluative	2

Education Level

Audience

Location

Laws, Policies, & Programs

Assessments and Surveys

What Works Clearinghouse Rating

Showing all 2 results Save | Export

The Relationship between the Distribution of Item Difficulties and Test Reliability.

Peer reviewed

Feldt, Leonard S. – Applied Measurement in Education, 1993

The recommendation that the reliability of multiple-choice tests will be enhanced if the distribution of item difficulties is concentrated at approximately 0.50 is reinforced and extended in this article by viewing the 0/1 item scoring as a dichotomization of an underlying normally distributed ability score. (SLD)

Descriptors: Ability, Difficulty Level, Guessing (Tests), Mathematical Models

Information Retention as a Function of the Number of Intervals and the Reliability of Continuous Variables.

Peer reviewed

Schiel, Jeffrey L.; Shaw, Dale G. – Applied Measurement in Education, 1992

Changes in information retention resulting from changes in reliability and number of intervals in scale construction were studied to provide quantitative information to help in decisions about choosing intervals. Information retention reached a maximum when the number of intervals was about 8 or more and reliability was near 1.0. (SLD)

Descriptors: Decision Making, Knowledge Level, Mathematical Models, Monte Carlo Methods