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Good layout in questionnaires is crucial in mail and internet questionnaires, but not important for personal and telephone interviews.
Q7: Random sampling errors and systematic errors related
Q42: The purpose of factor analysis is to
Q45: Reverse coding may be used prior to
Q45: Simple random sampling requires complex computer programs
Q46: Which of the following is not a
Q47: In a regression equation, if the average
Q47: In multiple regression, the coefficients β1, β2,
Q49: Loading questions are significant source of bias
Q55: A researcher would like to test whether
Q61: The basic approaches to establishing validity include