this statistical procedure may be attributed to chance. This permits the interpretation that so far as M determinant productivity is concerned, it is not affected by the presence (C) and absence (A) of color in the Rorschach inkblots.A final bit of evidence to support the above contention is the rho of .86 between M in C and A plates. M-productivity in one series permits adequate prediction for the other. 4. CONCLUSIONSThe four findings reported immediately above indicate that the M factor in Rorschach responsiveness is independent of the color variable.1. 2.3. 4.;>. 6. " I . 8. 9. BIBLIOGRAPHY ALLEN, R. M. The role of color in Rorschach's test: the influence of color on reaction time in a normal population. J. proj. Tech., 1951, 15, 481-485. ALLEN, R. &I., MANNE, S. H., and STIFF, MARGARET. The role of color in Rorschach's test: a preliminary normative report on a college student population. J . proj. Tech., 1951, 15, 235-242. ALLEN, R. M., MANNE, S. H., and STIFF, MARGARET. The influence of color on the consistency of responses in the Rorschach Test. J. clin. Psychol., 1952, 8, 97-98. ALLEN, R. M., STIFF, MARGARET P., and ROSENZWEIG, M. I. The role of color in Rorschacli's test: a preliminary study of neurotic and psychotic groups. In press. FRIEDMAN, M. T1.e cse of ranks to avoid the assumption of normality. J . Amer. Statis. Ass., GCILFORD, J. P. Fundanrental statistics in psychology awl education. (2nd. Ed.) N. Y.: McGrauHill, 1950.RANZONI, JANE H., GRANT, MARGUERITE Q., and I n s , VIRGINIA. Rorschach "card pull" in a normal adolescent group.

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PROBLEMOf the more recently developed projective techniques, human figure drawings appear to be particularly useful in psychodiagnostic work with the mentally retarded. In addition to not requiring any verbal response on the part of the participant, as in many of the more widely utilized projective devices, they are easily obtained and can be successfully produced by individuals of relatively low intelligence.

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