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Rachel A. Caspar, a senior survey methodologist, joined RTI in 1988. She specializes in designing questionnaires and developing data collection procedures for surveys of sensitive topics. She also adapts complex material and concepts to be easily and consistently understood by survey participants of all ages, educational levels, and cultural backgrounds. Ms. Caspar�s methodological research is broad based, focusing on survey methods for capturing data on sensitive topics, methods for reducing item and unit nonresponse, questionnaire evaluation and testing, and designing and implementing computer-assisted survey data collection. She is proficient in all facets of cognitive laboratory and usability testing. Ms. Caspar regularly teaches courses on questionnaire design and cognitive laboratory testing methods. | 