Asked by Jasmine Norfleet on May 09, 2024
Verified
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
Blinding
A method used in research and experiments to prevent participants, and sometimes the researchers too, from knowing certain information that may lead to bias.
- Comprehend the role of statistical design elements (control, randomization, blinding) in enhancing the credibility of experimental outcomes.
Verified Answer
OO
Omaima OthmanMay 12, 2024
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.
Learning Objectives
- Comprehend the role of statistical design elements (control, randomization, blinding) in enhancing the credibility of experimental outcomes.
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