Explain the possible ways in which you can control “nuisance” variables.
Answer to relevant QuestionsWhat is internal validity and what are the threats to internal validity? Provide relevant measurable attributes for the following objects. Compare your service quality measure to the measure of Zeithaml, Parasuraman, and Berry (1988) presented in Journal of Retailing. a. How does your measure differ from this measure in terms of dimensions and elements? b. ...Why is it important to establish the “goodness” of measures and how is this done? a. Explain why cluster sampling is a probability sampling design. b. What are the advantages and disadvantages of cluster sampling? c. Describe a situation where you would consider the use of cluster sampling.
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