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________ involves the transformation of data to create variables or modify existing variables.
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Q8: A covariate is a _ independent variable
Q11: Information on differences between respondents and nonrespondents
Q21: _ has been used to determine preferences
Q36: Discriminant analysis is available in EXCEL.
Q45: If the probability of F is greater
Q76: Another name for questionnaire is schedule instrument.
Q82: r = 0 indicates _.<br>A)X and Y
Q94: Free-response questions are good as first questions
Q96: The _ is confusing and difficult to
Q111: All aspects of the questionnaire should be