What is the significance of test score pdf

What is the significance of test score

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Five psychometric meta-analyses (MAs) were performed to test these premises. A sixth MA was performed to validate a simplified method in which Wechsler composite scores are used instead of subtest scores. We predicted a strong positive correlation between vectors of lowered IQ scores following inbreeding, and vectors of g loadings; a strong negative correlation between lowered IQ scores following visual impairment and hearing impairment in children on average aged
Confirming our hypotheses, true correlations of .84 on inbreeding (K = 4; total N = 1,783); -.72 on visual impairment in children (K = 6; total N = 363); -.69 on hearing impairment in children (K = 2; total N = 1,287) were found.

Contrary to our hypothesis, the exploratory MA on schizophrenia showed an uncorrected correlation of -.50 (K = 5; total N = 315). The exploratory MA on epilepsy showed an uncorrected correlation of .44, which is mildly supportive of our hypothesis (K = 7; total N = 445). The MA using a simplified method yielded an almost identical correlation as the previous more extensive one, implicating the feasibility of the new technique. Taken together, the findings of inbreeding, visual impairment, and hearing impairment increase the likelihood of the hypothesized link between g loadings and a dimension of biological causation. Limitations of the theory and implications for interventions aimed at increasing g are discussed

• Creator/s: Dennys B. Franssen
• Date: 2010-05
• Book Topics/Themes: Correlated Vectors, Deafness, Blindness, g, g factor, general intelligence factor, inbreeding, visual impairment, schizophrenia, epilepsy, hearing impairment, giftedness, general intelligence, general intelligence factor

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