Sage Journals: Discover world-class research

Retricted access

Research article

First published 1988-04

Tests of Variance Equality When Distributions Differ in Form and Location

Stephen F. Olejnik, James Algina

Educational and Psychological Measurement

Retricted access

Research article

First published 1977-11

Is the ANOVA F-Test Robust to Variance Heterogeneity When Sample Sizes are Equal?: An Investigation via a Coefficient of Variation

Joanne C. Rogan, H. J. Keselman

American Educational Research Journal

Retricted access

Research article

First published 1969-12

Simplified Computational Programming for Mixed Analysis-of-Variance Designs with Equal and Unequal Subclass Numbers

Gilbert Becker, Farouk Chebib

Psychological Reports

Retricted access

Research article

First published 2019-12

Moral foundations explain unique variance in political ideology beyond resistance to change and opposition to equality

Onurcan Yilmaz, S. Adil Saribay

Group Processes & Intergroup Relations

Retricted access

Research article

First published 1999-4

Type I Error Probabilities of the Wilcoxon-Mann-Whitney Test and Student T Test Altered by Heterogeneous Variances and Equal Sample Sizes

Donald W. Zimmerman

Perceptual and Motor Skills

Retricted access

Research article

First published 1996-6

Univariate and Multivariate Omnibus Hypothesis Tests Selected to Control Type I Error Rates When Population Variances Are Not Necessarily Equal

William T. Coombs, James Algina, Debra Olson Oltman

Review of Educational Research

Free access

Research article

First published 2018-3

Modeling of equal channel forward extrusion force using response surface approach

SA Nazari Tiji, A Asgari, H Gholipour [...]

Proceedings of the Institution of Mechanical Engineers,Part B: Journal of Engineering Manufacture

Retricted access

Research article

First published 1965-9

The Problem of Testing the Hypothesis of Equality of Means of Several Univariate Normal Populations when Variances are Different

Sukharanjan Chakravarti

Calcutta Statistical Association Bulletin

Free access

Research article

First published 2015-11

Modeling and optimization of equivalent plastic strain in equal-channel angular rolling using response surface methodology

Reza Nemati Chari, Abdolvahed Kami, Bijan Mollaei Dariani

Proceedings of the Institution of Mechanical Engineers,Part B: Journal of Engineering Manufacture

Retricted access

Research article

First published 1987-3

Type I Error Rates and Power Estimates of Selected Parametric and Nonparametric Tests of Scale

Stephen F. Olejnik, James Algina

Journal of Educational and Behavioral Statistics

Search results