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The Relational Abilities Index+: Initial Validation of a Functionally Understood Proxy Measure for Intelligence

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Abstract

The Relational Abilities Index (RAI) has shown considerable utility as a functional proxy measurement of intellectual performance by providing a metric of an important skill set known as relational skills, which are proposed to underlie much of what we conceive of as intellectual behavior. The Relational Abilities Index+ (RAI+) assesses performance across an extended range of relational skills (Same/Opposite, More/Less, Same/Different, Before/After, and Analogy), and has been designed to provide a more comprehensive and nuanced assessment of relational skills. The current study aims to investigate the validity and utility of the RAI+ by assessing its degree of correlation with well-established assessments of intelligence (WASI), numeracy (WAIS: Arithmetic), and educational attainment (WIAT-T-II). Results indicate that the RAI+ displays considerable efficacy in predicting intellectual performance and numeracy, but not educational attainment.

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  1. Aoife Malone and Seafra Barrett contributed equally to this work.

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  1. Department of Psychology, Maynooth University, Maynooth, Ireland

    Dylan Colbert, Aoife Malone, Seafra Barrett & Bryan Roche

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  1. Dylan Colbert
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Appendix A

Appendix A

Table 3 The format and sequence of all 67 RAI+ trials
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Colbert, D., Malone, A., Barrett, S. et al. The Relational Abilities Index+: Initial Validation of a Functionally Understood Proxy Measure for Intelligence. Perspect Behav Sci 43, 189–213 (2020). https://doi.org/10.1007/s40614-019-00197-z

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