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  2. Flynn effect - Wikipedia

    en.wikipedia.org/wiki/Flynn_effect

    They also reported that the magnitude of the effect was different for different types of intelligence ("0.41, 0.30, 0.28, and 0.21 IQ points annually for fluid, spatial, full-scale, and crystallized IQ test performance, respectively"), and that the effect was stronger for adults than for children.

  3. Intelligence and education - Wikipedia

    en.wikipedia.org/wiki/Intelligence_and_education

    Evidence shows that education and intelligence have a complex interaction, and this is demonstrated in a longitudinal study by Richards and Sacker. [9] They collected data from the British 1946 birth cohort and investigated how childhood intelligence was predictive of other outcomes later in life including educational attainment and mental ability at 53 years old (using the National Adult ...

  4. American IQ Scores Have Rapidly Dropped, Proving the ... - AOL

    www.aol.com/american-iq-scores-rapidly-dropped...

    A Northwestern University study shows a decline in three key intelligence testing categories—a tangible example of what is called the Reverse Flynn Effect. Leading up to the 1990s, IQ scores ...

  5. Criterion validity - Wikipedia

    en.wikipedia.org/wiki/Criterion_validity

    An example of predictive validity is IQ tests, it was originally developed to predict future school performance. Another example is a comparison of scores on the SAT with first semester grade point average (GPA) in college; this assesses the degree to which SAT scores are predictive of college performance. [5]

  6. Cognitive epidemiology - Wikipedia

    en.wikipedia.org/wiki/Cognitive_epidemiology

    Cognitive epidemiology is a field of research that examines the associations between intelligence test scores (IQ scores or extracted g-factors) and health, more specifically morbidity (mental and physical) and mortality.

  7. Intelligence: Knowns and Unknowns - Wikipedia

    en.wikipedia.org/wiki/Intelligence:_Knowns_and...

    IQ tests had lower negative correlations with certain socially undesirable outcomes such as that children with high IQ were less likely to engage in juvenile crime. One example being a study finding a correlation of −0.19 (−0.17 with social class controlled for) between IQ scores and number of juvenile offenses in a large Danish sample.

  8. Scarr–Rowe effect - Wikipedia

    en.wikipedia.org/wiki/Scarr–Rowe_effect

    In 2003, Eric Turkheimer and colleagues replicated the effect in an analysis of the National Collaborative Perinatal Project. Medical, psychological, and SES data were collected for children at 8 months, 1 year, 4 years, and 7 years; at age 7 they completed the Wechsler Intelligence Scale for Children (WISC). The mothers' SES data were ...

  9. Predictive validity - Wikipedia

    en.wikipedia.org/wiki/Predictive_validity

    In psychometrics, predictive validity is the extent to which a score on a scale or test predicts scores on some criterion measure. [ 1 ] [ 2 ] For example, the validity of a cognitive test for job performance is the correlation between test scores and, for example, supervisor performance ratings.