A_Perez_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.

1b) From the Report output, describe the difference in the means between bodyimage and dietingstatus . Describe the difference in means between selfesteem and dietingstatus . In this particular dataset, it is evident that there is a slight variation in the means. However, it is not significant enough to make a notable difference. Specifically, the average score for body image among participants who did not diet was 41.9, while for those who did diet it was 38.0. The mean for self- esteem among non-dieting individuals was 23.8 and for dieters it was 22.0 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).

Report dietingstatus consumption1 consumption2 mood1 mood2 not dieting Mean 18.5333 22.1333 5.4000 6.5333 N 15 15 15 15 Std. Deviation 4.17247 5.43621 2.06328 1.72654 dieting Mean 15.0000 17.6000 5.6000 6.6000 N 15 15 15 15 Std. Deviation 2.85357 3.62137 2.09762 1.88225 Total Mean 16.7667 19.8667 5.5000 6.5667 N 30 30 30 30 Std. Deviation 3.94517 5.09045 2.04686 1.77499 3b) From the Descriptive Statistics output, discuss the means from session one and session two on the variables consumption and mood . By examining the averages, we can see that there was minimal change in consumption from time 1 to time 2. When it came to non-dieting participants, their average consumption increased from 18.5 at consumption 1 to 22.1 at consumption 2, which is only a difference of 3.6. On the other hand, dieting participants had an average consumption of 15.0 at consumption 1 and 17.6 at consumption 2, which is only a difference of 2.6. As for their mood, non-dieting participants had an average mood of 5.4 at mood 1 and 6.5 at mood 2, which is a difference of only 1.1 between them. Comparatively, dieting participants had an average mood of 5.6 at mood 1 and 6.6 at mood 2, which is also only a difference of one point. 3c) Select Analyze , then Compare Means , then Paired-Samples T Test .

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. From the columns, we can see that the p-value for consumption was <.001, and the p-value for mood was <.001. This suggests that both tests are statistically significant since any value less than .05 is considered significant. Based on this knowledge, I would conclude that there are relatively small changes in both consumption and mood.