Question Detail

BIO 201 Objective Question
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Question

In a parallel study design evaluating diagnostic devices, what is 'index test bias'?
Options
A Bias introduced when interpretation of the index test is influenced by knowledge of the reference standard result.
Correct Answer
B Bias resulting from calibrating instruments using out-of-date standard controls.
C The systematic variation observed between duplicate runs on identical equipment.
D The mathematical distortion caused by calculating median rather than mean parameters.
Correct Answer

Option A is the correct answer.

Detailed Explanation

Index test bias occurs when unblinded evaluators interpret index test readouts with prior knowledge of the true reference standard diagnosis.

Hint

No hint available

Question Info

Course: BIO 201
Type: Objective
Difficulty: Not specified
Question 132 of 285
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