What Is the Impact of Adding Distractors on Polytomous Item

question 48

Multiple Choice

What is the impact of adding distractors on polytomous item reliability?

• A)The number of distractors is inversely related to item reliability.
• B)Large numbers of distractors can greatly increase reliability.
• C)Adding distractors may not increase reliability if the distractors are implausible.
• D)Reliability is optimized when there are 8 to 10 distractors.

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