ANOVA blood pressure
All of us have had our blood pressure measured while at our
physician’s office. How accurate are these measurements? It may surprise you to
learn that there is something called “white coat syndrome”—the tendency of some
people to exhibit elevated blood pressure in clinical (medical) settings only.
In other words, for these people, the very fact that the physician is taking
their blood pressure causes it to increase In this activity, you will be using
the “Activity 4c.sav” data file to determine whether you find support for the
existence of white coat syndrome. In this study, 60 participants were randomly
assigned to one of three groups. The “settings” variable indicates the location
in which the participants’ blood pressure was recorded: 1=home, 2=in a doctor’s
office, and 3=in a classroom setting. The “SystolicBP” variable contains the
participants’ systolic pressure (the “upper” number). The “DiastolicBP”
variable contains the participant’s diastolic pressure (the “lower” number).
1.Exploratory Data Analysis/Hypotheses. a.Perform
exploratory data analysis on both the SystolicBP and DiastolicBP variables.
Using SPSS, calculate the mean and standard deviation of these two variables.
Be sure that your analysis is broken down by setting (e.g., you will have six
means, six SD’s, etc.). b.Create two graphs—one for systolic and one for
diastolic pressure. Each graph should clearly delineate the three groups.
c.Write a null and alternative hypothesis for the comparison of the three
groups (note that your hypothesis will state that the three groups are
equivalent; be sure to word your null hypothesis correctly).
2.ANOVA. a.Using the “Activity 4c.sav” data file, perform
two single factor ANOVAs: one using SystolicBP and one using DiastolicBP as the
dependent variable. b.If appropriate for either or both of the ANOVAs, perform
post hoc analyses to determine which groups actually differ. c.Write one
paragraph for each ANOVA (be sure to use APA style). At a minimum, each
paragraph should contain the three means, three SD’s, ANOVA results (F, df),
post hoc tests (if applicable), effect size, and an interpretation of these
results.
Submit one Word document and one SPSS data file. You will
create the Word document by cutting and pasting SPSS output into Word. Your
submittal should demonstrate thoughtful consideration of the ideas and concepts
that are presented in the course and provide new thoughts and insights relating
directly to this topic. Where applicable your submittal should reflect scholarly
writing and current APA standards. Review APA Form and Style.
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