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McGilligan, Robert P.; Barclay, Allan G. – Journal of Clinical Psychology, 1974
In order to examine two of the criticisms of Witkin's differentiation construct, RFT, CPI and PMA Spatial Relations scores on 40 ninth-grade boys and girls were compared. (Author)
Descriptors: Correlation, Psychological Studies, Research Methodology, Sex Differences
Peer reviewed Peer reviewed
Nickel, Ted – Educational and Psychological Measurement, 1971
Directions are provided for the construction of a reduced size Rod and Frame Test. Simpler and less expensive, the proposed apparatus has criterion validity parallel to that of the full-sized. (GS)
Descriptors: Comparative Analysis, Psychological Studies, Sex Differences, Statistical Analysis