a study examined the effects of different diets on the weight of pet dogs. Dogs were assigned to different diets and their weight was recorded. The owners of the dogs were aware of the diet their dog was given. Statement 1 Blinding was not used in this study. (true or false) Statement 2 Blocking was not used in this study.(true or false) Statement 3 A control group was not used in this study.(true or false)
Question
a study examined the effects of different diets on the weight of pet dogs. Dogs were assigned to different diets and their weight was recorded. The owners of the dogs were aware of the diet their dog was given.
Statement 1
Blinding was not used in this study. (true or false)
Statement 2
Blocking was not used in this study.(true or false)
Statement 3
A control group was not used in this study.(true or false)
Solution
Statement 1
True. Blinding was not used in this study. This is because the owners of the dogs were aware of the diet their dog was given. In a blinded study, the participants (in this case, the dog owners) would not know which diet their dog was receiving.
Statement 2
True. Blocking was not used in this study. Blocking is a technique used in experimental design to reduce the effects of confounding variables. In this study, there is no mention of any attempt to control or account for other variables that might affect the dogs' weight, such as breed, age, or activity level.
Statement 3
True. A control group was not used in this study. The text does not mention a group of dogs that were kept on their regular diet or given a placebo for comparison with the dogs on the experimental diets.
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