13 May PSY 510 SPSS Assignment 4
PSY 510 SPSS Assignment 4
Before you begin the assignment:
• Review the video tutorial in the Module Eight resources for an overview of comparing means in SPSS.
• Download and open the Food Consumption SPSS data set.
To submit your assignment:
• The best way to paste your output into the Assignment document is to do the following:
o Select Copy when copying from the SPSS output.
o To paste in Word, your document must be open within the VDI. Use a shared drive (such as OneDrive) or access your learning environment within the virtual desktop to download this document.
o Select Paste and then resize the image to fit the screen in Word.
An overview of the data set:
The results of a hypothetical experiment are in the data set. The experiment examined dieting, food consumption, and mood. In session one, participants ate at a popular restaurant. Researchers measured the amount of food eaten and their mood. Those results are recorded as consumption1 and mood1 variables.
One week later, in session two, participants again ate at the restaurant while watching a funny movie. Researchers measured the amount of food eaten and their mood. Those results are consumption2 and mood2 variables. Participants’ body image and self-esteem were also measured.
The variables:
• Subnum: The ID number of each participant
• Dietingstatus: Participants who were not dieting were coded as 1; those who were dieting were coded as 2.
• Consumption1: The amount of food (in ounces) eaten in session 1
• Consumption2: The amount of food (in ounces) eaten in session 2
• Mood1: Participants’ mood at time 1; scale ranged from 1 (negative mood) to 10 (positive mood)
• Mood2: Participants’ mood at time 2; scale ranged from 1 (negative mood) to 10 (positive mood)
• Bodyimage: Participants’ self-reported body satisfaction on a scale ranged 25 (dissatisfied) to 50 (satisfied)
• Selfesteem: Participants’ self-esteem rating on a scale from 15 (low self-esteem) to 30 (high self-esteem)
Questions:
To complete this assignment, replace the bracketed text with the relevant information.
1a) Run a means test to compare the means of dieters and non-dieters on the bodyimage and selfesteem variables.
Move bodyimage and selfesteem to the Dependent list and dietingstatus to Layer 1 of 1.
[Paste your relevant output.]
1b) From the Report output, describe the difference in the means between bodyimage and dietingstatus. Describe the difference in means between selfesteem and dietingstatus.
[Insert your answer.]
2a) To explore the relationship between bodyimage and dietingstatus and selfesteem and dietingstatus, use an independent samples t-test because you have two unrelated groups (dieting and non-dieting).
Select Analyze, then Compare Means, then Independent-Samples T Test.
In the Independent-Samples T Test window, bodyimage and selfesteem are Test Variables.
The grouping variable is dietingstatus; non-dieting is defined as 1 and dieting is defined as 2.
[Paste your relevant output.]
2b) Review the Independent Samples Test output. Look at the Sig. (2-tailed) column to decide the level of statistical significance.
• Is there significance with either variable?
• Explain how to determine statistical significance.
• Discuss your conclusion about the relationship between dieting status on bodyimage and selfesteem.
[Insert your answer.]
3a) Calculate the means for consumption1, consumption2, mood1, and mood2.
Select Descriptive Statistics, then Descriptives.
Enter consumption1, consumption2, mood1, and mood2 into Variables.
[Paste your relevant output.]
3b) From the Descriptive Statistics output, discuss the means from session one and session two on the variables consumption and mood.
[Insert your answer.]
3c) Select Analyze, then Compare Means, then Paired-Samples T Test.
[Paste your relevant output.]
3d) From the Paired Samples Test output, locate the Sig. (2-tailed) column.
• What do the p values tell you about the data?
• Are the findings statistically significant?
• Discuss your conclusions about session 1 and session 2 consumption and mood variables.
[Insert your answer.]
4a) Create a research hypothesis unrelated to the Food Consumption data that could use a paired samples t-test for analysis (one group measured twice). Describe and identify your variables (IV and DV).
[Insert your answer.]
4b) Create data for your variables from at least 10 participants and develop a data set. Run a paired samples t-test.
[Paste your relevant output.]
4c) Discuss your output. Was there statistical significance? Explain the findings.
[Insert your answer.]
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