Hostname: page-component-745bb68f8f-mzp66 Total loading time: 0 Render date: 2025-01-07T18:20:59.024Z Has data issue: false hasContentIssue false
  • English
  • Français

The Estimation of Reliability When Several Trials are Available

Published online by Cambridge University Press:  01 January 2025

Howard W. Alexander
Howard W. Alexander*
Affiliation:
Adrian College
Get access Rights & Permissions [Opens in a new window]

Abstract

In certain types of experiment it frequently happens that we have a block of data consisting of several trials on the same individuals. Using the methods of estimation provided by the analysis of variance, estimates of reliability are derived for this case, and the conditions under which each is valid are discussed. Various relations between these estimates and the product-moment coefficient of correlation are obtained.

Type
Original Paper
Information
Psychometrika , Volume 12 , Issue 2 , June 1947 , pp. 79 - 99
Copyright
Copyright © 1947 The Psychometric Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

*

From the Laboratory of Physiological Hygiene, University of Minnesota. This work was supported in part under the terms of a contract between the Regents of the University of Minnesota and the Office of Scientific Research and Development. Important financial assistance was also provided by the Nutrition Foundation, Inc.: The U. S. Sugar Cane Refiners Association, N. Y.; the Corn Industries Research Foundation, N. Y.: Swift and Co., Chicago; the National Confectioners' Association; the National Daily Council, Chicago; and the Graduate Medical Research Fund. University of Minnesota. The author is indebted for assistance and encouragement to all the members of the staff of the Laboratory of Physiological Hygiene, and especially to Mr. Harold Guetzkow and Mr. Rich and Seymour.

References

Alexander, H. W. A general test for trend. Psychol. Bull., 1946, 43, 533–557.CrossRefGoogle ScholarPubMed
Crump, S. L. The estimation of variance components in analysis of variance. Biometrics Bull., 1946, 2, 7–11.CrossRefGoogle Scholar
Fisher, R. A. Statistical methods for research workers, London: Oliver and Boyd, 1941.Google Scholar
Jackson, R. W. B. Reliability of mental tests. Brit. J. Psychol., 1939, 29, 267–287.Google Scholar
Jackson, R. W. B. Application of the analysis of variance and covariance method to educational problems. Bull. No. 11, Dept. of Educ. Research, Univ. of Toronto, 1940.Google Scholar
Jackson, R. W. B. Studies on the reliability of tests. Bull. No. 12, Dept. of Educ. Research, Univ. of Toronto, 1941.Google Scholar
Jellinek, E. M. Measurements of the consistency of fasting oxygen consumption rates in schizophrenic patients and normal controls. Biometric Bull., 1936, 1, 15–43.Google Scholar
Snedecor, G. W. Statistical methods, Ames, Iowa: Collegiate Press, 1946.Google ScholarPubMed