Evaluating the Concurrent Validity of Three Web - Based IQ Tests and the Reynolds Intellectual Assessment Scales ( RIAS )
نویسندگان
چکیده
In a double-blind study, 60 General Psychology students, selected in low, average, and high ACT ranges, were administered the Reynolds Intellectual Assessment Scales (RIAS). On a separate occasion, the students also completed web-based internet IQ tests from tickle.com, queendom.com, and iqtest.com. MANOVA results showed that ACT level had a significant effect on all four IQ scores combined (Wilk’s Lambda = .451, p<.001), and all univariate ANOVA results also found significant ACT effects (p<.001 for RIAS, Tickle and Queendom; p<.05 for IQtest). Concurrent validity was evaluated by correlating scores on a particular test with the Composite Intelligence Index (CIX) scores on RIAS. Both Tickle and Queendom scores correlated significantly (p<.01) with RIAS, but the correlation between IQtest and RIAS was not significant. Correlations among the three internet tests were all significant (p<.01).
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