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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).

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 cut-off (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 “yay-saying” 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 2.      S 3.      DA 4.      W 5.      S
6.      DA 7.      S 8.      W 9.      DA 10.  DA
11.  S 12.  W 13.  S 14.  DA 15.  I
16.  W 17.  DA 18.  DA 19.  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).
  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.

 

 

 

Criteria Points Possible Points Earned Instructor’s Comments
Current APA format for table and figure captions  

5

 

   
Correct table and statistics for the variables

The student correctly calculated the total scale and subscale values, including measures of central tendency. Moreover, these results are clearly communicated in a table.

25    
Correct graph for the total and subscale variables: 5 points each

The student selected and presented a graph that illustrated the distribution of scores for the total scale and each subscale.

25    
Correct Cronbach’s alpha values

Correct values of internal consistency are reported.

20    
Summary Statement:

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.

25    
Total 100    

 

SPSS Assignment Part 2 Grading Rubric

 

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