A survey that asks the respondent to indicate their age and includes response categories of age 20-30 age 30-40 age 40 50 and age 50+ violates which important rule for constructing closed-ended items for naires ?

Correct answer: E. mutually exclusive

  • A. exhaustive
  • B. tangible
  • C. comprehensive
  • D. relevant
  • E. mutually exclusive

Explanation

The categories overlap at ages 30 and 40, so one respondent may fit more than one category. Closed-ended response options should be mutually exclusive as well as collectively exhaustive.

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