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Question
Professor Hardy has spent the last decade conducting a study of the effects of early childhood "Wellness" programs on subsequent delinquency. Every year, researchers visit participating families and collect a variety of data. Over the course of 10 years, many families have moved away and the research staff has been unable to locate them. What problem has Professor Hardy encountered?a. cross-sectional distortion
b. cohort distortion
c. panel attrition
d. experimental mortality
Answer
This answer is hidden. It contains 1 characters.
Related questions
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