ERIC - Search Results

Descriptor

Comparative Analysis	2
Nonparametric Statistics	2
Analysis of Covariance	1
Hypothesis Testing	1
Mathematical Formulas	1
Monte Carlo Methods	1
Power (Statistics)	1
Regression (Statistics)	1
Sample Size	1
Statistical Distributions	1

Source

Psychological Bulletin

Author

Algina, James	1
Blair, R. Clifford	1
Higgins, James J.	1
Olejnik, Stephen F.	1

Publication Type

Reports - Research	2
Information Analyses	1
Journal Articles	1
Speeches/Meeting Papers	1

Education Level

Audience

Researchers

Location

Laws, Policies, & Programs

Assessments and Surveys

What Works Clearinghouse Rating

Showing all 2 results Save | Export

Comparison of the Power of the Paired Samples t Test to that of Wilcoxon's Signed-Ranks Test under Various Population Shapes.

Peer reviewed

Blair, R. Clifford; Higgins, James J. – Psychological Bulletin, 1985

Uses Monte Carlo methods to assess the relative power of the paired samples t test and Wilcoxon's signed-ranks test under 10 population shapes. Concludes that, insofar as these two statistics are concerned, the often-repeated claim that parametric tests are more powerful than nonparametric tests is not justified. (Author/CB)

Descriptors: Comparative Analysis, Monte Carlo Methods, Nonparametric Statistics, Sample Size

A Review of Nonparametric Alternatives to Analysis of Covariance.

PDF pending restoration

Olejnik, Stephen F.; Algina, James – 1984

Five distribution-free alternatives to parametric analysis of covariance (ANCOVA) are presented and demonstrated using a specific data example. The procedures considered are those suggested by Quade (1967); Puri and Sen (1969); McSweeney and Porter (1971); Burnett and Barr (1978); and Shirley (1981). The results of simulation studies investigating…

Descriptors: Analysis of Covariance, Comparative Analysis, Hypothesis Testing, Mathematical Formulas