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Table 2 Statistical analysis validation of the SDM-Q9

From: Spanish validation endorsement of SDM-Q-9, a new approach

  Mean (DS) Corrected Item-Total Correlation Cronbach’s Alpha if Item Deleted
SDM QUESTION 1 4.88 (1.833) .360 .841
SDM QUESTION 2 3.80 (2.046) .598 .817
SDM QUESTION 3 3.11 (2.213) .474 .831
SDM QUESTION 4 3.70 (2.257) .542 .824
SDM QUESTION 5 4.82 (1.749) .511 .827
SDM QUESTION 6 3.00 (2.026) .599 .817
SDM QUESTION 7 3.62 (2.097) .734 .801
SDM QUESTION 8 3.11 (2.260) .523 .826
SDM QUESTION 9 4.45 (1.976) .625 .815