Which of the Following Items Violates a Principle of Questionnaire

Multiple Choice

Which of the following items violates a principle of questionnaire design?

A) a. Annual Income: Under $20,000
$20,000 - $40,000
$40,000 - $60,000
Over $60,000

B) b. Annual Income: $0 - $20,000
$20,001- $40,000
$40,001- $60,000
$60,001+

C) c. Annual Income: Under $20,000
$20,001 - $40,000
$40,001 - $60,000
Over $60,000

D) Annual Income: _____________