Use the Following to Answer Questions

question 48

Multiple Choice

Use the following to answer questions
Study Description: Dance Dance Revolution
Unnithan, Houser, and Fernhall (2006) were interested in whether playing the game Dance Dance Revolution (DDR) affected the heart rate of overweight adolescents differently than it affected non-overweight adolescents.Twenty-two adolescents, 10 classified as overweight and 12 as not overweight, played DDR for 12 minutes, while the researchers measured each participant's heart rate.On average, the researchers found no difference between the heart rate of the two groups.
-(Study Description: Dance Dance Revolution) Which statement is the null hypothesis for this study?

• A) There will be no difference in the heart rate of the two groups after playing Dance Dance Revolution.
• B) The heart rate of the overweight group will be faster than that of the non-overweight group after both groups play Dance Dance Revolution.
• C) The heart rate of the non-overweight group will be faster than that of the overweight group after both groups play Dance Dance Revolution.
• D) The heart rates of the overweight group and the non-overweight group will differ after both groups play Dance Dance Revolution.

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Definitions:

Placebo

A compound that does not have any healing properties, employed as a standard in evaluating new medications.

Demand Characteristics

Demand characteristics refer to the subtle cues or signals that can influence participants’ behavior in experiments, biasing the results.

Representative

Someone who acts or speaks on behalf of others, often in a professional setting or within legislative bodies.

Canadian Population

The total number of people living in Canada, encompassing diverse ethnic, cultural, and linguistic groups.