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. 2011 Feb 2;18(2):125–130. doi: 10.1136/jamia.2010.009316

Table 2.

Descriptive statistics, correlations, internal consistency reliabilities, and average variances extracted

Internal consistency reliability Mean SD 1 2 3 4 5 6 7 8 9 10 11 12 13 14
1. Gender (1: men) NA NA NA NA
2. Age NA 41.20 14.40 0.20*** NA
3. Neuroticism 0.71 2.20 0.40 0.04 0.04 NA
4. Conscientiousness 0.75 6.20 0.38 0.05 0.13* 0.04 0.75
5. Agreeableness 0.73 3.28 1.13 −0.12* −0.12* 0.05 0.08 0.73
6. Openness to experience 0.70 3.51 1.20 0.14* −0.15* 0.00 −0.07 −0.12* 0.75
7. Extraversion 0.71 4.13 1.14 −0.13* −0.10 0.03 −0.13* −0.07 0.12* 0.78
8. Perceived usefulness 0.87 4.10 1.31 0.16** −0.16** 0.01 0.10 0.04 0.19** 0.08 0.83
9. Perceived ease of use 0.85 3.87 1.51 0.15* −0.16** 0.04 0.07 0.03 0.15* 0.10 0.19** 0.82
10. Preimplementation performance 0.75 4.49 1.29 0.07 0.23*** 0.02 0.06 0.08 0.17** 0.14* 0.07 0.01 0.71
11. Centrality (direct) NA 32.30 21.60 −0.17** 0.19** −0.02 0.09 0.15* 0.21*** 0.24*** −0.22*** −0.15* 0.28*** NA
12. Centrality (indirect) NA 21.22 14.20 −0.19** 0.14* −0.01 0.04 0.12* 0.17** 0.20*** −0.19*** −0.12* 0.26*** 0.33*** NA
13. Electronic medical records system use NA 7.35 4.20 0.13* −0.24*** −0.04 0.04 0.18** 0.20*** −0.22*** 0.23*** 0.16* 0.13* −0.39*** −0.34*** NA
14. Postimplementation performance 0.80 5.08 1.01 0.08 0.21*** 0.01 0.09 0.12* 0.17** 0.17** 0.13* 0.10 0.32*** 0.30*** 0.25*** 0.29*** 0.78

*p<0.05; **p<0.01; ***p<0.001.

Diagonal values are the square roots of average variances extracted.