This study aims to examine the psychometric properties (reliability, validity and norms) of the Family (IFR) was performed

This study aims to examine the psychometric properties (reliability, validity and norms) of the Family (IFR) was performed. The study population consisted of all students in the school at the time of the study were enrolled in one of the Alborz High School. Data collection tools was use of the index pattern of family relationships. To test the hypothesis of classical psychometric theory analysis including exploratory factor analysis with principal components analysis and factor analysis to assess the validity of the index pattern of family relationships, the correlation between total score and subscales as convergent validity, the correlation between the assessment of family relationships with family adaptability and cohesion as a criterion validity, the alpha coefficient for internal consistency and test-retest estimates were used. Research results showed that the combination of these 3 factors(Understanding family, family ties, family cohesion) On the 297/60% of the variance of the index family relationships (IFR) to Explains. Can also be deduced that the proportion of the total variance of the first to third in the Index of Family Relations (IFR) is higher than any other factor. So the results of exploratory factor analysis and confirmatory factor analysis shows the validity test of the relationships in the community. Relationships between index scores with the assessment of adaptability and family cohesion (99%) is significant. These results reflect the criterion validity of the relationships in the community and the estimated coefficients indicate the reliability of the scale and subscales in both internal consistency and reliability.