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Table 3 Item-total correlations of items of the scale (n: 200)

From: Drug Abstinence Self-Efficacy Scale (DASES): psychometric properties of the Farsi version

  Scale Mean if Item Deleted Scale Variance if Item Deleted Corrected Item-Total Correlation Cronbach's Alpha if Item Deleted
Q.1 76.67 106.494 .747 .954
Q.2 76.68 110.249 .617 .956
Q.3 76.70 109.928 .618 .956
Q.4 76.57 108.580 .704 .955
Q.5 76.69 108.130 .718 .955
Q.6 76.57 108.569 .671 .955
Q.7 76.58 107.099 .734 .954
Q.8 76.60 107.107 .729 .954
Q.9 76.64 108.002 .743 .954
Q.10 76.61 105.521 .783 .954
Q.11 76.61 104.938 .730 .954
Q.12 76.68 106.332 .733 .954
Q.13 76.67 106.794 .671 .955
Q.14 76.53 108.063 .709 .955
Q.15 76.56 107.570 .723 .954
Q.16 76.56 107.935 .713 .955
Q.17 76.57 107.434 .720 .954
Q.18 76.57 107.371 .702 .955
Q.19 76.59 105.472 .731 .954
Q.20 76.53 107.323 .699 .955
  1. Item performance metrics for each of the DASES items