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. 2019 Dec 23;15:3511–3518. doi: 10.2147/NDT.S237449

Table 2.

Descriptive Statistics and Cronbach’s Alpha

Mean SD Skew Kurtosis Cronbach Alpha if Item Deleted
I. Anhedonia
 1. Intensity of pleasure during activities 2.70 1.65 0.34 −1.09 0.95
 2. Frequency of pleasurable activities 2.70 1.59 0.29 −0.90 0.95
 3. Intensity of future pleasure 2.57 1.69 0.38 −1.00 0.95
 Total subscale 7.96 4.78 0.36 −0.95
II. Distress
 4. Lack of normal distress 2.28 1.35 0.18 −1.23 0.95
 Total subscale 2.28 1.35 0.18 −1.23
III. Asociality subscale
 5. Asociality:behavior 3.22 1.28 −0.18 −0.64 0.95
 6. Asociality:inner-experience 3.14 1.55 −0.15 −1.24 0.96
 Total subscale 6.36 2.53 −0.37 −0.82
IV. Avolition subscale
 7. Avolition: behavior 2.17 1.16 0.33 −0.50 0.95
 8. Avolition: inner-experience 2.43 1.30 0.05 −1.07 0.95
 Total subscale 4.61 2.33 0.03 −1.04
V. Blunted affect subscale
 9. Facial expression 2.74 1.42 0.34 −1.07 0.95
 10. Vocal expression 2.30 1.59 0.52 −1.05 0.95
 11. Expressive gesture 2.76 1.53 0.19 −1.13 0.95
 Total subscale 7.80 4.23 0.38 −1.08
VI. Alogia subscale
 12. Quantity of speech 1.70 1.19 0.99 0.47 0.95
 13. Spontaneous elaboration 2.17 1.54 0.71 −0.72 0.95
 Total subscale 3.87 2.53 0.79 −0.35 0.95
Total 32.88 15.18 0.20 −0.92 0.95

Abbreviation: SD, standard deviation.