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Reducing Error in Mail Surveys.
face interviews. Those conducting surveys should recognize four potential sources of error -- sampling error, non-coverage error, non-response error, and measurement error -- and take steps to minimize their impact. Any one of these sources of error may make the su...
www.ericdigests.org/2004-2/error.html
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Considerations in Developing and Using Computer-Adaptive Tests To Assess Second Language P...
used for a wide variety of purposes, including the following: * Identifying whether an individual has met the specific objectives of a basic language or literature course. * Indicating an individual's level of achievement in a skill domain (e.g., listening comprehension or gra...
www.ericdigests.org/2000-3/computer.htm
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