ANOVA results of four factor analysis based on mean values of verbal, performance and full scale IQ.

Model I = Population×Gender×Age×Inbreeding, Model II = Residence×SES×Age×Inbreeding.df = degrees of freedom; ss = sum of squares; ms = means square; SES = socioeconomic status.In Model I, the population, gender, and age based differences are found to be non-significant for all cognitive tests.In Model II, the residence, SES and age are found to be insignificant.Inbreeding is found to be significant for all cognitive parameters in both the models.***Statistically significant at pANOVA results of four factor analysis based on mean values of verbal, performance and full scale IQ.