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15 Feb 2022
Energy Drinks: Popular energy drinks contain green tea extract and caffeine. Do these energy drinks help you lose weight by increasing your metabolism?
Researchers at a medical school designed an experiment to determine the effects of green tea and caffeine on energy metabolism in healthy, lean, young adults.
Researchers randomly assigned participants to 2 treatments. One group drank Formula A, a beverage with green tea and caffeine. The other group drank Formula B, a beverage with none of these ingredients but colored to look like Formula A. The beverages were blinded at the production site, so the experiment was double-blind.
The researchers chilled the beverages to 6
C. Participants drank the beverages at the same time each day for three days. During the 3 days of the experiment, the researchers feed each participant the same diet. On the third day participants spent 24 hours in a calorimeter chamber to measure their energy metabolism. The medical journal Obesity published the results in 2007 .
What is the purpose of double-blinding?
⚪ To control unintentional researcher bias in the execution of the experiment
⚪ To control for the participants' prior beliefs about energy drinks
⚪ To control both unintentional research bias and participant prior beliefs
Energy Drinks: Popular energy drinks contain green tea extract and caffeine. Do these energy drinks help you lose weight by increasing your metabolism?
Researchers at a medical school designed an experiment to determine the effects of green tea and caffeine on energy metabolism in healthy, lean, young adults.
Researchers randomly assigned participants to 2 treatments. One group drank Formula A, a beverage with green tea and caffeine. The other group drank Formula B, a beverage with none of these ingredients but colored to look like Formula A. The beverages were blinded at the production site, so the experiment was double-blind.
The researchers chilled the beverages to 6C. Participants drank the beverages at the same time each day for three days. During the 3 days of the experiment, the researchers feed each participant the same diet. On the third day participants spent 24 hours in a calorimeter chamber to measure their energy metabolism. The medical journal Obesity published the results in 2007 .
C. Participants drank the beverages at the same time each day for three days. During the 3 days of the experiment, the researchers feed each participant the same diet. On the third day participants spent 24 hours in a calorimeter chamber to measure their energy metabolism. The medical journal Obesity published the results in 2007 .What is the purpose of double-blinding?
⚪ To control unintentional researcher bias in the execution of the experiment
⚪ To control for the participants' prior beliefs about energy drinks
⚪ To control both unintentional research bias and participant prior beliefs
