Scientific Questionnaire Design

By: Meghna Pinnaka, Sai Kondepati

Question

Does the number of AP courses a person takes, affect the amount of sleep they get?

Hypothesis

The number of AP courses a student at CHS takes affects the amount of sleep he/she gets.

Type of Investigation

Comparative Investigation

Parts of the Experiment

1. Dependent Variable - Amount of Sleep

2. Independent Variable - Number of AP Courses taken

3. Control - None

4. Experimental Group - Students that attend CHS

5. Two Factors Held Constant - Students that attend CHS and the questions asked were two factors held constant throughout the experiment. The 2 questions were:

  • How many AP courses do you take?
  • How many hours of sleep do you get?

Data Table

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Bar Graphs

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Analysis

The number of AP courses a student at CHS takes does not affect the amount of sleep he/she gets. In the T-test the "p value" of the number of hours of sleep (0.471) is greater than 0.05. This means that the independent variable (number of AP courses taken) does not have an effect on the dependent variable (number of hours of sleep received). In the Standard Error of Mean graph, the error bars -- from 5.79 and 7.17; 5.53 and 7.52-- overlap herewith, there is not a significant variation in the hours of sleep for 2 or less AP courses and 3 or more AP courses taken. The reason why the number of AP courses did not impact sleep because other factors, such as sports, affect the amount of sleep received. According to a study by Stanford University, 62.4% of students in Stanford University that were in extracurricular activities experienced defiecient sleep (http://www.aasmnet.org/articles.aspx?id=886). Another study in "Journal of Adolescent Health" reported that jobs, social activities, and volunteering take a toll on the amount of sleep received (http://www.cfah.org/hbns/2010/most-high-school-students-are-sleep-deprived).

Conclusion

The hypothesis was not supported and the purpose was not achieved. The number of AP courses a student at CHS takes does not affect the amount of sleep he/she gets.

Sources of Inaccuracies/Errors

The experimental group could in fact be a source of error since each grade level did not have the same amount of samples. The experimental pool could have been increased if the addition of electronic questionnaire was introduced. Asking people with other activities such as sports would have produced more accurate results.

Bibliography

Duval, Sylviane. "Most High School Students Are Sleep Deprived." Most High School Students Are Sleep Deprived. N.p., 5 Jan. 2010. Web. 09 Sept. 2015.


McCann, Kathleen. "AASM News Archive." AASM. N.p., 15 May 2008. Web. 09 Sept. 2015.


Designing a Scientific Questionnaire packet


Lab directions