A researcher is studying the relationship between sugar consumption and weight gain.Twelve volunteers were randomly assigned to one of two groups.The first group of five participants was put on a diet low in sugar and the second group of the remaining seven participants received 10% of their calories from sugar.After 8 weeks,weight gain was recorded from each participant.Which of the following basic principles of statistical design was not used in this experiment?

A) Control
B) Randomization
C) Repetition
D) Blinding

Question

Omaima Othman · Accepted Answer

Final Answer : D, Explanation :  Blinding was not mentioned as part of the experimental design. Control, randomization, and repetition were used: control through the low sugar diet group, randomization in assigning volunteers to groups, and repetition by having multiple participants in each group.

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