Lifestyle is an indivisible part of holistic development of an individual including the academic performance. As it is well said, sound health is a foundation of sound mind and sound mind guides to intelligence and intelligence furnish towards good academic achievement. Therefore, academic achievement is also related to health of an individual. The objective of the present study was to determine the reliability (test-retest) of the Academic Achievement Questionnaire (AAQ) for college going sedentary females. A questionnaire was developed, consisting 10 variables, which were sent out to the experts for suggestion who rated each question on a ten-point scale to ascertain the face validity of the AAQ. A trial run was performed and the questionnaire was modified accordingly. The questionnaire was modified keeping in view the input provided by the experts. A group (n=35) which was selected randomly consisted of college going sedentary females between the age of 17 to 20 years. Thereafter the developed AAQ was administered on the selected sample twice at the interval of two days. The statistical analysis used was mean, standard deviation and the Pearson product-moment correlation ‘r’ between the trials. All statistical test were applied p<0.05 level of significance. The range of ‘r’ for the administration questionnaire was.40 to.47 which is considered an “acceptable” measure of reliability. In conclusion each items/variable of the selected questionnaire had acceptable reliability in regard to sedentary college going females.