Dr.Belair is studying the effects of noise exposure on the occurrence of headaches.He exposes 20 subjects to a constant noise in their work environment and asks them to record their headaches.The next week he uses the same subjects without exposing them to noise and measures the number of headaches the subject's record.
A.Independent variable noise/ no noise: dependent Variable is the number of headaches subject's experience A.What is Dr.Belair's independent variable & Dependent Variable?
B.She is using a within-subjects design B.What type of design is Dr.Belair using?

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The Answer of Dr.Belair is studying the effects of noise exposure on the occurrence of headaches.He exposes 20 subjects to a constant noise in their work environment and asks them to record their headaches.The next week he uses the same subjects without exposing them to noise and measures the number of headaches the subject's record.
A.Independent variable noise/ no noise: dependent Variable is the number of headaches subject's experience A.What is Dr.Belair's independent variable & Dependent Variable?
B.She is using a within-subjects design B.What type of design is Dr.Belair using?

DrBelair Is Studying the Effects of Noise Exposure on the Occurrence