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BIO 201 Objective Question
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Question

In a diagnostic parallel study design, what is the fundamental structural arrangement regarding subject or sample assignment?
Options
A Subjects or samples are assigned to distinct, independent groups evaluated simultaneously over the same timeframe.
Correct Answer
B Subjects serve as their own controls by receiving sequential treatments after a mandatory washout period.
C Samples are tested sequentially only after the results of the initial index test are fully analyzed.
D Groups are evaluated at different historical timepoints using retrospective observational databases.
Correct Answer

Option A is the correct answer.

Detailed Explanation

A parallel study design evaluates separate, concurrent groups simultaneously under uniform conditions, avoiding temporal confounding.

Hint

No hint available

Question Info

Course: BIO 201
Type: Objective
Difficulty: Not specified
Question 56 of 285
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