"Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information on it."

Research Reports


The scientific papers and research behind the HIP Assement and High Impact Players

Why g Matters: The Complexity of Everday Life

This report summarizes the data to illustrate the advantages of higher g in predicting the overall life changes of individuals.
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General Mental Ability in the World of Work: Occupational Attainment and Job Performance

This report presents the research evidence that GMA predicts job performance better than any other ability, trait or disposition and better than job experience.
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Introduction to the Special Section on Cognitive Abilities: 100 Years After Spearman's (1904) "'General Intelligence,' Objectively Determined and Measured"

This report outlines the evidence that cognitive abilities are a necessary requisite for success in dealing with modern life.
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The Validity and Utility of Selection Methods in Personnel Psychology: Practical and Theoretical Implications of 85 Years of Research Findings

This report is an update of the seminal meta-analytic findings that support the use of GMA for employment selection. It discusses combining GMA with other selection processes.
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