Time Spent 00:01:25 Assignmer Quizzes Q1: What of the following is the most reli

Question

Time Spent 00:01:25 Assignmer Quizzes Q1: What of the following is the most reliable source of information about the effectiveness of a nutritional supplement? A The results of a randomized double-blind intervention trial that compared the nutritional B) A study that compared the health of users of the nutritional supplement with non-users, CA study that compared the health of users of the nutritional supplement with non-users, D Two hundred people describing their use of the nutritional supplement and how it improved supplement to a placebo. uncorrected for confounding factors. corrected for confounding factors. their health.

Explanation / Answer

ANSWER 1
A) The results of a randomized double-blind intervention trial that compared the nutritional supplements to a placebo

This is because the account of two hundred users is baseless, and even after factoring in confounding variables or not for non-users, the non-users by themselves might show different results because they know that they are the non-users, hence a placebo is a must. Also double-blind indicates that the researcher would not be able to introduce his/her own biases in order to publish the result and become famous or get money.

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