ABSTRACT
One of the common problems in elderly people is falling. The effort to identify environmental risk factors at home and their modifications may control falls and injury in the elderly. Home FAST as a valid and reliable screening tool is used to identify elderly at risk of falling at home and in society. International quality of life assessment [IQOLA] was used for validity and reliability of Home fast. After forward and backward translation, the questionnaire was evaluated for content validity by 5 occupational therapists. Sixty participants aged over 65 were randomly selected through five geographical regions of Tehran. Inter-rater and test-retest with one week interval were conducted by two occupational therapists. Agreement among experts about the validity of screening tool of Home FAST [x[2]= 25.008] were more than 96%.The correlations of test-retest with relative and absolute coefficients were high [ICC = 0.72 and SEM = 0.89]. Also, the correlation coefficients between the raters with absolute and relative [ICC = 0.88 and SEM = 0.54] were significant, indicating the high reliability of this test. This study shows the reliability and validity of the test are high. Since, test items are conformable to fall prevention goals, these results can be expected. The tool can be used by professionals