ANOVA

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PART 1 All of us have, at some time or another, 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 (for more information about white coat syndrome see http://www.webmd.com/anxiety-panic/features/beyond-white-coat-syndrome. Use the attached 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). A. Exploratory Data Analysis: For the SystolicBP and DiastolicBP variables, copy and paste the output into the Word document. B. Mean & Standard Deviation: Using SPSS, calculate the mean and standard deviation of these two variables. Be sure that your analysis is broken down by setting (i.e., you will have six means, six SDs, etc.). Copy and paste the output into the Word document. C. Graphs: Create two graphs—one for systolic and one for diastolic pressure. Each graph should clearly delineate the three groups. Copy and paste into the Word document and title appropriately. D. Hypotheses. Write null and alternative hypotheses for the comparison of the three groups (note that your alternative hypothesis will state that the three groups are equivalent
be sure to word your null hypothesis correctly). PART 2 A. ANOVA: Using the attached data file , perform two single factor ANOVAs: one using SystolicBP and one using DiastolicBP as the dependent variable. Copy and paste the output into the Word Document. B. Post Hoc Analyses: If appropriate for either or both of the ANOVAs, perform post hoc analyses to determine which groups actually differ. C. Report: Write one paragraph for each ANOVA (be sure to use APA style). At a bare minimum, each paragraph should contain the three means, three SDs, ANOVA results (F, df), post hoc tests (if applicable), effect size, and an interpretation of these results. May 21 2014 02:23 PM

 

Solution ID:608887 | This paper was updated on 26-Nov-2015

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