Validity, Reliability, and Baloney

as applied in certain particular situations. In the present study the criterion is college scholarship, as given by the usual gradepoint average. The subjects were 29 senior and graduate students in a course in Psychological Measurements. These students took Forms Q and R of the Cooperative Vocabulary 7est, Form R being administered about two weeks after Form Q. The correlation between grade-point average and the combined score on both forms of this test was -23. The reliability of the test, estimated by the Spearman-Brown formula from the correlation between the two forms, was .90. The experimental form of the new test, which I have termed the &dquo;B -Projective Psychokinesis Test,&dquo; or Test B, was also applied to the group. This experimental form contained 85 items, and there was a reaction to every item for every student. The items called for unequivocal &dquo;plus&dquo; or &dquo;minus&dquo; reactions, but in advance of data there is no way to tell which reaction to