Partial and multiple correlation show the last two tests contribute most and the tests are fairly well selected¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 1920 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Third-order partial correlations with pooled ratings were higher for tests III and IV (.285 and .369) than tests I and II (.146 and .250), and applying the regression equation raises the validity correlation only from .64 to .67. → Pressey 1920

Evidence¶

Pressey 1920¶

Pressey, S. L. (1920). A Brief Group Scale of Intelligence for Use in School Surveys. The Journal of Educational Psychology. https://psycnet.apa.org/journal/edu

q2 · i? · associational · r2

Multiple-correlation analysis of the junior high school validity dataset (116 seventh-grade cases) using pooled teacher ratings as criterion. The article concludes "the last two tests are the most valuable of the four and should perhaps be weighted".

"The method of partial correlation was used with the five variables given above. The resulting third-order coefficients, of each test with the pooled estimates, were:"

Discussion¶

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