Delacato, C.The treatment and prevention of reading problems. Springfield, III.: Charles C. Thomas, 1959.
2.
Dobbs, Virginia & Neville, D.The effect of non-promotion on the achievement of groups matched from retained first graders and promoted second graders. J. educ. Res., 1967, 60, 472-475.
3.
Harris, C. W. (Ed.) Problems in measuring change. Madison, Wisc.: Univ. Wisconsin Press, 1963.
4.
Hopkins, K.D. & Bibelheimer, M.H.Two and four year constancy of CTMM language and non-language lQs. Toward a Professional Identity in School Psychology, 11th Annual Conference, Calif. Assn. of School Psychologists and Psychometrists, 1963.
5.
Lord, F.M.A paradox in the interpretation of group comparisons. Psychol. Bull., 1967, 68, 304-305.
6.
McNemar, Q.Psychological statistics. (3rd ed.) New York: Wiley, 1962 .
7.
Scott, O. & Brinkley, S.G.Attitude changes of student teachers and the validity of the Minnesota Teacher Attitude Inventory. J. educ. Psychol., 1960, 51, 76-81.
8.
Stanley, J.C.Problems in equating groups in mental retardation research. J. spec. Educ., 1967, 1, 241-256.
9.
Thorndike, R.L.Regression fallacies in the matched groups experiment. Psychometrika , 1942, 7, 85-102.
10.
Thorndike, R.L.The concepts of over- and under-achievement. New York: Teachers College, Columbia Univ., 1963.
11.
Webb, A.P.A longitudinal comparison of the WISC and WAIS with educable mentally retarded Negroes. J. clin. Psychol., 1963, 19, 101-102.