ERIC - Search Results

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Graphs	2
Statistical Distributions	2
Ability	1
Academic Achievement	1
Educational Trends	1
Estimation (Mathematics)	1
Evaluation Utilization	1
Item Response Theory	1
Mathematical Models	1
Maximum Likelihood Statistics	1
Performance Factors	1
Research Reports	1
Simulation	1
Test Results	1
Trend Analysis	1
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Journal of Educational…

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Muraki, Eiji	1
Wainer, Howard	1
Yamamoto, Kentaro	1

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Reports - Evaluative	2
Journal Articles	1
Speeches/Meeting Papers	1

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Non-Linear Transformation of IRT Scale To Account for the Effect of Non-Normal Ability Distribution of the Item Parameter Estimation.

Yamamoto, Kentaro; Muraki, Eiji – 1991

The extent to which properties of the ability scale and the form of the latent trait distribution influence the estimated item parameters of item response theory (IRT) was investigated using real and simulated data. Simulated data included 5,000 ability values randomly drawn from the standard normal distribution. Real data included the results for…

Descriptors: Ability, Estimation (Mathematics), Graphs, Item Response Theory

Using Trilinear Plots for NAEP State Data.

Peer reviewed

Wainer, Howard – Journal of Educational Measurement, 1996

A trilinear chart for understanding the distribution of achievement levels of students' performance in the National Assessment of Educational Progress (NAEP) is described and its use illustrated with data from the 1992 state NAEP mathematics assessment. Trends for all 44 participating jurisdictions are simultaneously displayed. (SLD)

Descriptors: Academic Achievement, Educational Trends, Evaluation Utilization, Graphs