Designing a Scientific Questonnaire

Sydney Legee and Megha Ingersal

Question

Does gender affect the amount of naps students take?

Hypothesis

Gender will not affect the amount of naps CHS students take per week.

Type of Investigation

Comparative

Parts of the Experiment

1) Dependent Variable: amount of naps taken per week

2) Independent Variable: gender

3) Control: N/A

4) Experimental Group: male and female CHS students

5) Two Factors Held Constant: All participants were high school students, and all attend CHS.

Data Table

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Graphs

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Analysis

Gender has no effect on the amount of naps students take per week. The mean number of naps per week taken by boys was 1.2, with a Standard Error of the Mean of 0.6. This resulted in an error bar range of 0.0-2.4 when the error bars showed 2 SEMs. The mean number of naps per week taken by girls was 1.4, with a Standard Error of the Mean of 0.4. This resulted in an error bar range of 0.6-2.1 when the error bars showed 2 SEMs. The error bars for the boys' and girls' data overlapped greatly, meaning the means are not significantly different, and therefore the independent variable (gender) has no effect on the dependent variable (number of naps taken per week. According to professor Jim Horne, director of the Sleep Research Centre at Loughborough University, women on average need about 20 more minutes of sleep than men do, which is thought to be attributed to women's tendencies to multitask (http://www.dailymail.co.uk/health/article-1246029/Who-REALLY-needs-sleep--men-women-One-Britains-leading-sleep-experts-says-answer.html). However, this 20 minute difference between men and women would not constitute enough of a difference to make women need naps on a more regular basis than men, which supports the results of our study.

Conclusion

The null hypothesis was supported as gender does not affect the amount of naps CHS students take per week. Additionally, the purpose of designing a comparative investigation that answers a specific research question was achieved as this study compared two groups based on the independent variable (gender) in order to answer the question of whether gender affects the amount of naps CHS students take.

Sources of Inaccuracies/Errors

One potential source of error in this study could be that enough subjects weren’t asked. Another could be that students weren’t accurate when answering our questionnaire. They could have approximated the number of naps taken each week because they couldn’t remember exactly how many naps they take per week. These factors may have given us inaccurate results.

Bibliography

DailyMail, Lucy. "Who REALLY Needs More Sleep - Men or Women? One of Britain's Leading Sleep Experts Says He Has the Answer." Mail Online. Associated Newspapers. Web. 4 Sept. 2015. <http://www.dailymail.co.uk/health/article-1246029/Who-REALLY-needs-sleep--men-women-One-Britains-leading-sleep-experts-says-answer.html>.

Martin, Jennifer. "Designing a Scientific Questionnaire." Web. 3 Sept. 2015. <https://www.schoology.com/system/files/attachments/files/m/201508/course/333908739/Designing_a_Scientific_Questionairre_55d892e01a8e5.pdf>.