Researchers conduct an experiment to determine which therapy for anorexia results in the highest weight gain,...
Researchers conduct an experiment to determine which therapy for anorexia results in the highest weight gain, on average. They collected data on pre- and post-weights for 72 anorexic girls who were randomly assigned to one of three treatments: cognitive therapy, family therapy, or a control group (no therapy). You will analyze the weight change (post-pre) for each of the three treatments.
What is the response variable for this experiment?
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anorexic girls |
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weight change |
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|
type of therapy |
||
|
control group |
What is the explanatory variable (i.e. group or factor) for this experiment?
Recall: Researchers conduct an experiment to determine which therapy for anorexia results in the highest weight gain, on average. They collected data on pre- and post-weights for 72 anorexic girls who were randomly assigned to one of three treatments: cognitive therapy, family therapy, or a control group (no therapy). You will analyze the weight change (post-pre) for each of the three treatments.
|
anorexic girls |
||
|
weight change |
||
|
type of therapy |
||
|
control group |
Homework Answers
Response Variable for this experiment is weight change
Response Variable: The outcome variable or the dependent variable is known as Response Variable. Here it is the weight change
The independent variable is known as Explanatory Variable. Here it is Type of Therapy (groups ie Pre and Post) and Treatment Groups (with Three Levels ie cognitive therapy, family therapy, or a control group)
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