Which of the Following Would Be Helpful in Reducing the Chance

Multiple Choice

Which of the following would be helpful in reducing the chance of hypothesis-guessing on a measure?

A) include more items on the questionnaires (The longer the measure the less chance participants will guess the purpose of the study.)
B) include less items on the questionnaire (The shorter the measure the less chance participants will guess the purpose of the study.)
C) include distractor questions to help divert attention from the true purpose of the study
D) increase the Cronbach's alpha coefficient for the measure