Velez, Pauline and Steven D. Ashworth. 2007. "The Impact of Item Readability on the Endorsement of the Midpoint Response in Surveys." Survey Research Methods 1(2):69-74.
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Velez, P., Ashworth, S. D. (2007). The Impact of Item Readability on the Endorsement of the Midpoint Response in Surveys. Survey Research Methods, 1(2), pp. 69-74.
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