Abbreviated scales often involve administering a subset of tests from the full scale, and then using the obtained score to estimate the score which would have been obtained if the entire scale had been administered. Tellegen and Briggs (1967) provided formulae for determining and reliabilities, validities, and standard deviations of this type of short form. Atkinson and Yoshida (1989) described a BASIC program for making the requisite reliability and validity calculations. This article reports an augmented program which includes computation of standard deviations.
Get full access to this article
View all access options for this article.
References
1.
Atkinson, L. and Yoshida, G. (1989). A BASIC program for determining reliability and validity of subtest combination short forms. Educational and Psychological Measurement, 49, 141-143.
2.
Doll, E. A. (1917). A brief Binet-Simon scale. Psychological Clinic, 11, 197-211.
3.
Levy, P. (1968). Short-form tests: A methodological review. Psychological Bulletin, 69, 410-416.
4.
Tellegen, A. and Briggs, P. F. (1967). Old wine in new skins: Grouping Wechsler subtests into new scales. Journal of Consulting and Clinical Psychology, 31, 499-506.
