A study on the effective factors of IQ and the relation between IQ and school achievement among middle school students

Abstract

In a descriptive analytic cross-sectional study, the IQ of 100 middle school students randomly selected from 184 students of Kahak village, province Qom, was determined using raven culture-free test. The ANOVA statistical test was to determine the relation between IQ and sex, age, mother’s age at birth, number of children, economic state, broken family, parent’s educational degree preschool education and leisure time as independent variables. 57% of the subjects had an IQ at normal level. Average IQ in boys and girls was 100.2 and 101 respectively. A statistically significant difference was found between IQ and school achievement (P<0.001). No statistically significant difference was found between IQ and the independent variables