Development of MAIS and MUSS Questionnaires (Farsi version). The MAIS and MUSS, developed at the Indiana University School of Medicine, are parent report scales which allow the examiner to evaluate a child's skills in meaningful, real-world situations. Each scale utilizes 10 probes. The MAIS gathers auditory behavioral information, whereas the MUSS investigates speech production behaviors. Ten areas are to be probed in MAIS and MUSS in each list and then give the specific questions that are to be asked by the clinician. In many instances, additional queries are also given, which might help the parent answer more accurately and fully. It is important for the clinician to write the parents' response in its entirety, rather than simply marking an "X" on one of the five (5) possible responses. This is important for two reasons. First, we wish to be able to antidotally compare the child's progress over time, and the examples and reports given by the parents help us do that. In addition, the ability to evaluate interexaminer reliability requires that enough information be written down so that an independent examiner could also answer the questions, based on the parent's written responses. In this study, we tried to develop a Farsi version of these Questionnaires (Farsi-MUSS and Farsi-MAIS) to help prepare appropriate medical and rehabilitative approaches.