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Comparative Analysis	2
Control Groups	2
Nonparametric Statistics	2
Ability	1
Computer Simulation	1
Effect Size	1
Estimation (Mathematics)	1
Experimental Groups	1
Item Bias	1
Meta Analysis	1
Robustness (Statistics)	1
Sample Size	1
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Psychometrika

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Narayanan, Pankaja	1
Schoeps, Nancy	1
Swaminathan, H.	1
Zhang, Zhiyi	1

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Reports - Evaluative	2
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On Robust Estimation of Effect Size under Semiparametric Models.

Peer reviewed

Zhang, Zhiyi; Schoeps, Nancy – Psychometrika, 1997

Two estimators of effect size that are based on the sample quartiles are proposed and studied. One is for the situation where a treatment effect is evaluated against a control group, and the other is for a situation in which two parallel treatments are compared. Both are illustrated and evaluated. (SLD)

Descriptors: Comparative Analysis, Control Groups, Effect Size, Estimation (Mathematics)

Performance of the Mantel-Haenszel and Simultaneous Item Bias Procedures for Detecting Differential Item Functioning. Laboratory of Psychometric and Evaluative Research Report No. 252.

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Narayanan, Pankaja; Swaminathan, H. – 1993

The purpose of this study was to compare two non-parametric procedures, the Mantel-Haenszel (MH) procedure and the simultaneous item bias (SIB) procedure, with respect to their Type I error rates and power, and to investigate the conditions under which asymptotic distributional properties of the SIB and MH were obtained. Data were simulated to…

Descriptors: Ability, Comparative Analysis, Computer Simulation, Control Groups