Reminder about potentially serious problems with a type of blocked ANOVA analysis / Steve Verrill, David E. Kretschmann.

Format:

Book

Government document

Author/Creator:

Verrill, S. P., author.

Kretschmann, David E., author.

Contributor:

Forest Products Laboratory (U.S.), issuing body.

Series:

Research paper FPL-RP ; 683.

Research paper FPL-RP ; 683

Language:

English

Subjects (All):

Analysis of variance.

Analysis of covariance.

Physical Description:

1 online resource (117 pages) : illustrations.

Place of Publication:

Madison, WI : United States Department of Agriculture, Forest Service, Forest Products Laboratory, 2017.

Summary:

"A type of blocked experiment has the potential of being poorly designed and/or analyzed. Verrill and coworkers have referred to such an experiment as a "predictor sort" experiment. David and Gunnink described the procedure as "artificial pairing." In textbooks it is sometimes referred to as a "matched pair" or "matched subjects" design. The associated design process is also sometimes described as "forming blocks via a concomitant variable." Improperly designed or analyzed predictor sort experiments can be associated with incorrect or inadequate power calculations and sample sizes, incorrect tests of hypotheses, and incorrect confidence intervals. In this paper we review the main results in the literature, add a section on multiple comparisons, and present results from power and confidence interval coverage simulations that emphasize the importance of the proper design and analysis of predictor sort experiments."

Notes:

"June, 2017."

Includes bibliographical references (pages 22-23).

Description based on online resource, PDF version; title from cover (USFS, viewed April 30, 2019).

Other Format:

Print version: Verrill, S. P. Reminder about potentially serious problems with a type of blocked ANOVA analysis

OCLC:

1099566067