Quotations from the original paper:
Quote:
[Administration of the RAADS-R to ASD Subjects] Following initial screening, a clinician interviewed each subject to confirm the diagnostic information and IQ data, completed the ADI/ADOS or ADOS module 4, and then introduced the scale and explained how to answer the questions. The clinician remained with each subject as the questions were being answered to offer clarifications when asked, and to make sure answers were entered in the proper columns on the Likert scale. An SRS-A scale was obtained from cooperating accompanying adults when available.
Quote:
[Limitations] Scales based on self-reports have inherent limitations: First, a subject may not understand a question, and while answering to the best of their ability, give a misleading answer. This was mitigated in the present study by having a clinician remain with the subject to clarify possible misunderstandings during the administration of the RAADS-R.
Honestly, there always should be a professional to help to answer the questions.