Jones, R. A. and Michael, W. B.The Validity of a Battery of Tests in Communication Skills for Foreign Students Attending an American University. EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, 1961, 21, 493-496.
2.
Jones, R. A., Kaplan, R. , and Michael, W. B.The Predictive Validity of a Modified Battery of Tests in Language Skills for Foreign Students at an American University. EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, 1964, 24, 961-965.