Fifth grade students completed ten trials of recalling familiar nouns plus two summary trials. Alpha factor analysis indicated that the measurement procedures may be conceived of as derived from a single domain and the use of a summary trial was a simple way to increase the generalizability of a particular measurement procedure. (Author/DEP)

Testing homogeneity of correlations with Fisher's Z is inappropriate when correlations are themselves correlated. Suppose measurements of brain activation and performance are taken before and during a verbal memory task. Of interest are changes in activity gradients in specific regions, R1, R2, R3, and performance, V. The "correlated correlations"…

A verbal concept-learning task permitting the externalizing and quantifying of learning behavior and 16 ability tests were administered to female graduate students. Data were analyzed by alpha factor analysis and incomplete image analysis. Six alpha factors and 12 image factors were extracted and orthogonally rotated. Four areas of cognitive…