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1.) To study the effects of music on sleep quality in adults 18 years or older,

ID: 3314036 • Letter: 1

Question

1.) To study the effects of music on sleep quality in adults 18 years or older, 100 adults were given the Pittsburg Sleep Quality Index (PSQI) and then asked to listen to 30 min of music at bedtime for three weeks. At the end of the three weeks, subjects were given the PSQI again and the change in score was reported.

a.) What type of experimental design is this?

b.) What is the population being studied?

c.) Identify the experimental units?

d.) What is the response variable?

e.) What is the treatment?

Explanation / Answer

Question:

a.) What type of experimental design is this?

Answer: Matched paired design

b.) What is the population being studied?

Answer: adults of 18 and more year olold

c.) Identify the experimental units?

Answer: an adult of 18 or more year old

d.) What is the response variable?

Answer: Pittsburg sleep quality index

e.) What is the treatment?

Answer: listing to 30 min music at bed time.