A Comparative Study of Intelligence in Children of Consanguineous and Non-consanguineous Marriages and its Relationship with Hollandâ€™s Personality Types in High School Students of Tehran
Keywords:Consanguineous and nonconsanguineous marriages, intelligence, personality type, high school students
AbstractIntroduction: The present research aims to study and compareÂ intelligence in children of consanguineous and non-consanguineousÂ marriages and its relation with Hollandâ€™s personality types.
Methodology: This is a descriptive study and uses an ex-post facto design. The statistical population is comprised of all high schoolÂ students of Tehran province in the school year 2010-2011. The sample size includes 1,221 students, 628 of whom are children of consanguineous marriages and 593 are children of non-consanguineousÂ marriages. The researchers employed Ravenâ€™s Progressive Matrices TestÂ and Holland Code (RIASEC) Test for data collection.
Findings: T-test results indicate that there is no signifiant differenceÂ in intelligence between children of consanguineous marriages and thoseÂ of non-consanguineous marriages. However, descriptive data indicateÂ that the mean IQ in children of consanguineous marriages is one unitÂ lower than those of non-consanguineous marriages. Also, the resultsÂ of variance analysis reveal that the difference in intelligence betweenÂ different personality types is signifiant. Tukeyâ€™s post hoc test results indicate that students with an investigative personality type have a higherÂ intelligence compared with those with other personality types.
Psychiatry & Mental Health
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