Please write your one-sentence hypothesis. A hypothesis should include the independent
and dependent variables and state what direction you think that relationship will be or how
you think two groups will be different. It is a statement, not a research question.
1a. IN ONE SENTENCE write your hypothesis.
1b. What is the independent variable?
1c. What is the dependent variable?
2. All of the data collected was using an online survey.
2a. What is one strength and one weakness of this data collection method?
2b. There are approximately 1500 Health Sciences majors at OU. How generalizable do you think
the results of this survey are the rest of Health Sciences majors? Explain your reasoning
including a comment on the sample size.
3. Describe specifically how the following variables were operationalized, that is, how were
these variables measured in the survey?.
3b. Fruit and vegetable intake
3c. Physical activity
4. Choose one of the variables listed in #2 (above) and identify a stronger way of
assessing this variable.
5. In this study, obesity is measured with BMI.
5a. How was BMI measured?
5b. What is a strength and weakness of this measure of obesity?
The results of all students who are currently taking HS201 in the Fall of 2016. In the table
below, you will fill in the information about this pooled sample. Go to the HS201 moodle
website and retrieve the relevant data to complete Step 3.
6.a. Using the data from class, fill in Tables 1 & 2 below. Be sure to include labels or units for
each variable! Choose two other variables to add to Table 1 that also describe the participants in
this study.
7. Next, we want to compare our class data with established health criteria for physical
activity, sleep, and fruits and vegetable intake. You should find credible, primary sources
for this information and be clear what recommendation you are comparing the class
average with. You may NOT be using your book, but rather accessing government
websites and publications like the Dietary Guidelines for Americans or position papers by
professional organizations like the American College of Sports Medicine or the Academy
of Nutrition and Dietetics. You MUST cite a minimum of one source per question when you
make your comparisons.
7a. Compared to recommendations, how are HS201 students doing on sleep? Based on this
assessment, what are some long-term or short-term health risks or benefits that the average
HS201 student might experience?
7b. Compared to recommendations, how are HS201 students doing on physical activity? Based
on this assessment, what are some long-term or short-term health risk or benefits that the
average HS201 student might experience?
7c. Compared to recommendations, how are HS201 students doing on fruit and vegetable
intake? Based on this assessment, what are some long-term or short-term health risk or benefits
that the average HS201 student might experience?
8. Now that we have described the study sample, we need to look at the statistical
relationships between Physical Activity and sleep, BMI, and fruit and vegetable intake.
8a. Explain the relationship between Physical activity and sleep. In your explanation include both
an interpretation of the r-value and a statement about significance (with a p-value).
8b. Explain the relationship between Physical activity and BMI. In your explanation include both
an interpretation of the r-value and a statement about significance (with a p-value).
NOTE: I can combine the moderate and intense physical activities into one variable, like we do
with fruit and vegetable intake.
8c. Explain the relationship between strength training activities and BMI. In your explanation
include both an interpretation of the r-value and a statement about significance (with a p-value).
4
8d. Explain the relationship between fruit and vegetable intake and Physical activity. In your
explanation include both an interpretation of the r-value and a statement about significance (with
a p-value).
9. Now, take a look at your hypothesis and based on the statistical analysis, answer the
following.
9a. Going back to your hypothesis, was it supported? Explain why you think it was/was not
supported. That is, thinking critically, why do you think this result occurred? You are graded on
your assessment of support and your explanation, NOT that your hypothesis was correct. Be sure
to cite sources, as appropriate.
And lastly, in HS201 we have discussed how men and women have different disease risks,
and that this may be due (in part) to differences in behaviors. Thus, our statistical analysis
now explores differences in physical activity, sleep, and fruit and vegetable intake among
men and women. Look at Table 4, which shows the group means for men and women
along with a p-value for group differences.
10a. Summarize, the differences (or similarities) between men and women, being sure to identify
when differences are significant vs not-significant, including the p-value as appropriate.
10b. Comment, briefly, on whether or not the findings surprise you and why.
11. Now we would like to find out how our class data compares with results from other
studies on college students.
11a. Find a peer-reviewed research study that examines differences (or similarities) in health
behaviors between men and women, published in the last 5 years using participants from the
United States. This study should be on one of the topics of this assignment: sleep, dietary intake,
or physical activity. Cut and paste the abstract here and remember to include an in-text citation at
the end of this abstract.
11b. What did the study find in terms of differences between men and women?
11c. Find a peer-reviewed research study about college health behaviors and cut and paste the
abstract here, again including an in-text citation. This should be on US or Canadian college
students, published in the past 10 years.
11d. Briefly describe how the study is similar and different to the one we conducted in class.
Areas for comparison should include methods, sample characteristics, and/or study findings.
12. Provide full citations for the ALL sources you used in this lab, including the references for the
articles you found in Step 4. Be sure to use APA formatting for the references. You do NOT need
to cite the data from this class. Remember, none of the sources may be from the book and ALL of
the sources must be credible