Difficulty Factors and the Use ofrphi
- 1 October 1965
- journal article
- research article
- Published by Taylor & Francis in The Journal of General Psychology
- Vol. 73 (2) , 321-337
- https://doi.org/10.1080/00221309.1965.9710728
Abstract
(1965). Difficulty Factors and the Use of r phi. The Journal of General Psychology: Vol. 73, No. 2, pp. 321-337.Keywords
This publication has 3 references indexed in Scilit:
- The Meaning of Some “Popular” VariablesThe Journal of Social Psychology, 1964
- The effectiveness of short methods for calculating correlation coefficients.Psychological Bulletin, 1952
- General considerations in the selection of test items and a short method of estimating the product-moment coefficient from data at the tails of the distribution.Journal of Educational Psychology, 1939