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The purpose of present study was to examine the psychometric properties of the Internalization of Parental Rules Scale (IPRS; Soenens & Vatkentkiste, 2009), with a sample of middle-adolescents with ages between 14 and 18 years. The confirmatory factor analysis was conducted to examine the reliability and validity of a four-dimension model of adolescents' different reasons to follow parental rules based on perspective of Self-Determination Theory. Results of the confirmatory factor analyses suggested the original factor structure of the IPRS does fit the data for adolescents' ratings of mother and fathers on the measures of internalizing of parental rules. The findings also reveal that the acceptable level of internal consistency is obtained for the four-factor structure (22 items) and the Relative Internalization Index (RII). Test-retest reliability is moderately strong among the subscales and RII score of the IPRS, and the results consistently agreed with the theoretical framework with respect to divergent validity. It is concluded that the IPRS constitutes a useful tool for the assessment of adolescents' different reasons to follow parental adolescents aged between 14 and 18 years.