Free State radiations, which promotes the use of non-invasive methods for the measurement of postural variables. Singla and Vegar 12 argues that the advancement of photographic method and its use as a method for postural evaluation is indisputable. This method has been compared with the visual observation method, goniometry and radiography and Singla and Vigar 12 and Rossario 11 recommend the use of the photogrammetric method for future studies that focus on posture evaluation. Consistent with contemporary validity and reliability theories, the performance of a new instrument needs to be evaluated in terms of accuracy, correctness or conformity as it relates to the true context 13 and value that is being measured 14 , as well as the consistency reflected in the measurements using the same instrument 15,16. The objectives of the current study were therefore to: (i) develop a Photographic Method of Postural Assessment (P-MPA) that quantitatively measures postural alignment, (ii) test the P-MPA in terms of the accuracy of measurements between anatomical landmarks and the line of gravity, representing validity, and (iii) test the P-MPA in terms of reproducibility, representing reliability 15. Two of the 3 types of validity as suggested by The Consensus Based Standards group for the selection of health status Measurement Instruments (COSMIN group) 17 were considered in the study of the P-MPA namely content validity which includes face validity, and construct validity which includes structural validity. The COSMIN group 18 regards reliability as a key measurement property of a measurement instrument and refers to consistency as