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English: Normal distribution of cognitive abilities among inbred in comparison with non-inbred children.

Differences in normal distributions of inbred in comparison with non-inbred children for VIQ (verbal IQ), PIQ (performance IQ) and FSIQ (full scale IQ ) show highly significant results (at p<0.0001, using One-way Analysis of Variance). The mean difference (95% CI) for VIQ −22.00 (−24.82, −19.17), PIQ −26.92 (−29.96, −23.87) and FSIQ −24.47 (−27.35, −21.59) among inbred groups in comparison with non-inbred found to be statistically significant (at p<0.001, using Tukey-Kramer Comparisons Test). The non-inbred shows a regular pattern, whereas frequency distributions among inbred children represent a shift toward lower values and sparsity toward the high average or superior IQs.


The study was conducted during April 2013 through July 2013 and a total of 408 children (6 to 15 years of age) were selected randomly on a priori basis from five Muslim populations viz., Gujjar and Bakarwal (n = 97), Mughal (n = 72), Malik (n = 86), Syed (n = 65) and Khan (n = 88). The age group of the children selected was 6 to 15 years.
Date Published: October 14, 2014
Source Fareed M, Afzal M (2014) Estimating the Inbreeding Depression on Cognitive Behavior: A Population Based Study of Child Cohort. PLoS ONE 9(10): e109585. doi:10.1371/journal.pone.0109585 http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0109585
Author Mohd Fareed , Mohammad Afzal
Other versions
FSIQ comparisons in respect to the degree of inbreeding
Cognitive abilities among inbred and non-inbred children
Inbreeding depression on cognitive abilities
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current18:50, 29 September 2016Thumbnail for version as of 18:50, 29 September 20161,950 × 2,827 (388 KB)Was a bee (talk | contribs){{Information |Description={{en|1=Normal distribution of cognitive abilities among inbred in comparison with non-inbred children. Differences in normal distributions of inbred in comparison with non-inbred children for VIQ (verbal IQ), PIQ (performance...

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