a study investigated the effect of a new training method on gthe agility of pet dogs. Dogs were first grouped by breed and then randomly assigned to receive either the new training or a traditional training method within each breed group. their agility was tested. Use the information about the study to decide if each of the following three statements are TRUE or FALSE. Statement 1 Blocking was used in this study. Statement 2 A control group was used in this study. Statement 3 Blinding was used in this study.
Question
a study investigated the effect of a new training method on gthe agility of pet dogs. Dogs were first grouped by breed and then randomly assigned to receive either the new training or a traditional training method within each breed group. their agility was tested. Use the information about the study to decide if each of the following three statements are TRUE or FALSE.
Statement 1
Blocking was used in this study.
Statement 2
A control group was used in this study.
Statement 3
Blinding was used in this study.
Solution
Statement 1: TRUE - Blocking was used in this study. The dogs were first grouped by breed before being randomly assigned to the different training methods. This is a form of blocking where the variable of breed is controlled for.
Statement 2: TRUE - A control group was used in this study. The dogs that received the traditional training method served as the control group, while the dogs that received the new training method were the experimental group.
Statement 3: FALSE - There is no information given in the study description that suggests blinding was used. Blinding would mean that the dogs' owners, or possibly the researchers, did not know which training method each dog was receiving. Since the study does not mention this, we cannot assume blinding was used.
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