An analysis of ratings: A guide to RMRATE

Thomas C. Brown; Terry C. Daniel; Herbert W. Schroeder; Glen E. Brink

doi:10.2737/RM-GTR-195

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An analysis of ratings: A guide to RMRATE

Informally Refereed

Authors:

Thomas C. Brown, Terry C. Daniel, Herbert W. Schroeder, Glen E. Brink

Year:

1990

Type:

General Technical Report

Station:

Rocky Mountain Research Station

DOI:

https://doi.org/10.2737/RM-GTR-195

Source:

Gen. Tech. Rep. RM-195. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 40 p.

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Download (PDF 548 KB): https://research.fs.usda.gov/download/treesearch/6262.pdf

Abstract

This report describes RMRATE, a computer program for analyzing rating judgments. RMRATE scales ratings using several scaling procedures, and compares the resulting scale values. The scaling procedures include the median and simple mean, standardized values, scale values based on Thurstone's Law of Categorical Judgment, and regression-based values. RMRATE also computes reliability statistics and analyzes the ratings using principal component analysis techniques to assess variation among judges. RMRATE should be useful to practitioners needing to summarize or analyze rating data, and to researchers interested in comparing and evaluating alternative scaling methods.

Keywords

Ratings, psychological scaling, reliability, judgment scaling model

Citation

Brown, Thomas C.; Daniel, Terry C.; Schroeder, Herbert W.; Brink, Glen E. 1990. An analysis of ratings: A guide to RMRATE. Gen. Tech. Rep. RM-GTR-195. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 40 p.