PSYC 421 SPSS ASSIGNMENT PART 2 INSTRUCTIONS The Center for Epidemiologic Studies Depression Scale (CES-D Scale) In the Assignment Instructions folder, there is an SPSS data file that will be the basis for your analysis. The data included are fictional and were created solely for this assignment. The Center for Epidemiologic Studies Depression Scale (CES-D scale) is often utilized to measure depressive symptomology (Radloff, 1977). It is a self-assessment that is completed by the individual. The CES-D contains 20-items rated on a 4-point scale (0 = Rarely or None of the Time to 3 = Most or All of the Time). The phrase \"Within the past week did you...\" prefaces the questions in order to emphasize recent depressive mood. Scores are summed and can range from 0 to 60. Traditionally, individuals with scores over 16 are identified as \"depressed\" (Weissman, et al., 1977), though due to high false positive rates, a score of 27 is considered a more useful cutoff (Zich, et al., 1990). The full scale can be accessed at: http://www.chcr.brown.edu/pcoc/cesdscale.pdf. Items 4, 8, 12, and 16 are reversed to avoid \"yaysaying\" or \"nay saying\" (Radloff, 1977). Several studies have validated four subscales across a variety of subgroups (i.e., depressive affect, well-being, somatic, and interpersonal) (Gliem & Gliem, 2003). Reliability and Subtest Scoring You will continue the analysis of the CES-D data by learning to score the survey and create subtest scores. Note: we are creating our own norms on this survey for Friberg University students so there are no scores for comparison. According to Knight, Williams, McGee, and Olaman (1997) and many others (e.g., Gliem & Gliem, 2003), the following subscales can be calculated: CES-D Subscales DA = Depressive Affect W = Well-being S = Somatic I = Interpersonal 1. S 6. DA 11. S 16. W 2. S 7. S 12. W 17. DA 3. DA 8. W 13. S 18. DA 4. W 9. DA 14. DA 19. I 5. S 10. DA 15. I 20. S 1. Reverse code the appropriate items (4, 8, 12, and 16) for calculating the total score (0 becomes 3, 1 becomes 2, 2 becomes 1, and 3 becomes 0). 2. Compute the total CES-D score. 3. Compute the four subscale scores. (Note: Be careful when interpreting \"well-being.\") 4. Calculate Cronbach's alpha for the overall scale and each subscale. 5. Create a single table to show the appropriate measures of central tendency and dispersion for all of the variables (total, depressive affect, well-being, somatic, and interpersonal). Page 1 of 2 PSYC 421 6. Create the appropriate graphs to show the distribution of scores for each subscale. 7. Write a summary paragraph explaining the outcome: Overall, scores ranged from X to XX (M = X, SD = X.X), indicating.... Subscale scores revealed.... Be sure to include means, standard deviations, Cronbach's alphas, and interpretations of the data. This assignment is due by 11:59 p.m. (ET) on Monday of Module/Week 3. Page 2 of 2 PSYC 421 Points Possible Criteria Current APA format for table and figure captions Correct table and statistics for the variables Points Earned Instructor's Comments 5 25 The student correctly calculated the total scale and subscale values, including measures of central tendency. Moreover, these results are clearly communicated in a table. Correct graph for the total and subscale variables: 5 points each 25 The student selected and presented a graph that illustrated the distribution of scores for the total scale and each subscale. Correct Cronbach's alpha values 20 Correct values of internal consistency are reported. Summary Statement: 25 The student clearly summarizes the descriptive and internal consistency results for the total scale and individual subscales. In addition, correct interpretations of the findings are discussed. Total 100 SPSS ASSIGNMENT PART 2 GRADING RUBRIC Running head: SPSS HOMEWORK 1 SPSS Sample Template for Homework Iman A. Student Liberty University SPSS HOMEWORK 2 NOTE: The following is a sample template for the layout of the results document expected for your SPSS homework. All data are fictitious and the statistics are incorrect, but simply presented as an example. Also, be sure to note that the scale you are reporting psychometrics on has different properties (e.g., different number of items, only 4 subscales, and measures a different construct). Please be sure to review the assignment instructions for details. PART ONE: Table 1 Gender Frequencies Gender Frequency Percent Female 112 81.1 Male 25 18.2 Percentages 15% Male Female 85% Figure 1. Percentage of Male and Female Participants SPSS HOMEWORK 3 Summary The sample was comprised of ### of college students from a private university in the southeastern United States. ## (#%) of the students were males, and ## (#%) females. Students were primarily... (give the appropriate descriptor information with %'s or whatever fits the variables you choose to analyze). PART TWO: Table 2 Cronbach's Alpha for the Total RBI Scale and Five Subscales Scale # of Items Alpha Total 38 .88 Disagree 10 .94 Mindreading 8 .72 Change 8 .67 Sexual 6 .82 Sexual Differences 6 .86 Table 3 Central Tendency Measures for Subscales Scale Mean SD Median Mode Range Total 52.11 6.81 50.12 50 32-80 Disagree 12.11 4.21 11.89 12 6-18 Mindreadin 13.45 5.90 12.12 11 5-20 g Change 20.43 6.21 20.41 18 10-30 Sexual 10.90 4.21 11.01 12 5-17 SexDifferent 29.21 5.01 27.23 30 24-35 SPSS HOMEWORK 4 Figure 2. Distribution of Scores on \"Disagreement is Destructive\" Subscale. Summary The Relationship Beliefs Inventory (RBI) consisted of a total score and five different subscales. Scores on the total score ranged from 32-60 (M = 52.11, SD = 6.81). The five subscales were as follows: disagreement is destructive (M =12.11, SD = 4.21), mindreading is expected (M = 12.45, SD = 5.90), partners cannot change (M = 20.43, SD = 5.23), sexual perfectionism (M = 10.9, SD = 4.21), and the sexes are different (M = 29.21, SD = 5.01). Higher scores indicated .... The subscale with the highest mean score.... The lowest mean score for a subscale was.... The greatest variation of scores existed on the \"partners cannot change\" subscale, with standard deviation being 6.21. Scores on subscales are considered ... data. Scores were moderately normally distributed, with disagreement, sexual perfection, and sex differences being slightly positively skewed. Cronbach's alpha was calculated as a measure of...For the total scale, Cronbach's alpha was...Alphas for the subscales ranged from...Alpha values indicated