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IQ Range ("ratio IQ") IQ Classification Above 140 "Near" genius or genius 120–140 Very superior intelligence 110–120 Superior intelligence 90–110 Normal, or average, intelligence 80–90 Dullness, rarely classifiable as feeble-mindedness 70–80 Border-line deficiency, sometimes classifiable as dullness, often as feeble-mindedness
IQ classification is the practice used by IQ test publishers for designating IQ score ranges into various categories with labels such as "superior" or "average". [187] IQ classification was preceded historically by attempts to classify human beings by general ability based on other forms of behavioral observation.
A Perceptual Reasoning Index (PRI) can be derived from the raw scores on the Matrix Reasoning and Block Design subtests. A Full Scale IQ-2 (FSIQ-2) can be derived from the raw scores on the Matrix Reasoning and Vocabulary subtests, while a Full Scale IQ-4 (FSIQ-4) can be derived from the raw scores on all 4 subtests. WASI-II Subtests grouped by ...
IQ Range ("deviation IQ") IQ Classification 145–160 Very gifted or highly advanced 130–144 Gifted or very advanced 120–129 Superior 110–119 High average 90–109 Average 80–89 Low average 70–79 Borderline impaired or delayed 55–69 Mildly impaired or delayed 40–54 Moderately impaired or delayed
The WISC-V takes 45 to 65 minutes to administer. It generates a Full Scale IQ (formerly known as an intelligence quotient or IQ score) that represents a child's general intellectual ability. It also provides five primary index scores, namely Verbal Comprehension Index, Visual Spatial Index, Fluid Reasoning Index, Working Memory Index, and ...
Results showed that the average firstborn had an IQ of 103, compared to 100 for second children and 99 for third children. ... IQ at 11 years was associated with a greater likelihood of using ...
[1] [2] Intelligence in the normal range is a polygenic trait, meaning that it is influenced by more than one gene, [3] [4] and in the case of intelligence at least 500 genes. [5] Further, explaining the similarity in IQ of closely related persons requires careful study because environmental factors may be correlated with genetic factors.
Higher IQ leads to greater success in education, [52] but independently, education raises IQ scores. [53] A 2017 meta-analysis suggests education increases IQ by 1–5 points per year of education, or at least increases IQ test-taking ability.