Before planning a questionnaire or survey, test developers identify the scale of measurement of their data to make sure that they are in alignment with the objectives of the study. They decide what type of data they will collect and how it will be analyzed. In addition, once the test items have been written and piloted to an initial tryout group of respondents, test creators perform item analysis to determine which items should be retained in their revised test.
In a minimum of 200 words, respond to the following:
Hide Files: Item Analysis.pdf, More on Scales of Measurement.pdf, Factor Analysis and Cross-Validation.pdf, Item Facility Index and Item Discrimination.pdf
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