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Q: Is CogAT an IQ test? Are SAS scores IQ scores?
A: No. CogAT measures reasoning abilities. Although these abilities are central to all definitions of intelligence, the word intelligence implies much more. However, psychologists have never agreed on the definition of intelligence, so how much more should be included in an intelligence test is often debated. Further, the notion of IQ comes from an earlier set of procedures for indexing the rate of mental development. CogAT does not use these procedures. The SAS scale used on CogAT provides normalized Standard Age Scores for that fraction of the population that attends school. Although SAS scores are very helpful for professionals, nonprofessionals can confuse them with IQ scores, so they are generally not reported to parents and lay organizations. Percentile ranks and stanines are better suited for general audiences.