The Rorschach as a measure of intelligence.

The inhibition process, Rorschach human movement responses, and intelligence: Some further data.

“…1 It will be noted there is a striking uniformity in the magnitude of correlation between M and IQ. Across a variety of groups and with differing measures of intelligence, the correlations are generally low, but significant, and with the exception of two studies (Altus & Thompson, 1949; 19S2) only linear relationships are reported. The median value of the M-IQ correlations is .26.…”

Predicting intelligence from the Rorschach.

“…For this purpose, those six variables, with the exception of M, were selected which had shown the highest relationship to IQ. M was not utilized since there is some evidence (1,2) to suggest that its relationship to IQ may tend toward curvilinearity. As a substitute, a measure of "total M," i.e., M + m + FM, was used.…”

“…In some studies, for example, significant relationships have been obtained between intelligence test scores and 1 From the VA Hospital, Battle Creek, Michigan. 2 Now at VA Hospital, Leech Farm Road, Pittsburgh, Pennsylvania. 8 Now at VA Hospital, Brockton, Massachusetts.…”

The relation of response length to the Holtzman Inkblot Technique.

“…one of the mechanisms or mediating variables through which personality comes to be reflected in inkblot scores. For instance, one of the most stable relations between inkblot perception and personality is the relation of the M score to intellectual ability (Altus & Thompson, 1949). While it is known that more intelligent people tend to give more M responses, there has never been a satisfactory explanation of why two such disparate variables as intelligence and movement perception on inkblots should be related to the extent they are.…”