References
- Chesire , L. , Saffir , M. and Thurstone , L. L. 1933 . Computing diagrams for the tetrachoric correlation coefficient , Chicago : Univ. Chicago Bookstore .
- Clarke , W. V. 1956 . Construction of an industrial selection personality test . J. of Psychol , 41 : 379 – 394 .
- Clarke , W. V. 1956 . Manual for the Administration of Activity Vector Analysis , Providence : AVA Publications .
- McNemar , Q. 1949 . Psychological Statistics , New York : Wiley .