. 2016 Apr 1;22(4):328–335. doi: 10.1089/acm.2015.0221

Table 7.

Item Reliability/Discrimination Statistics for Revised EBP (n = 1868)

Subscale	Mean ± SD	Corrected item-total correlation	Squared multiple correlation	Cronbach α if item deleted
Attitudes^a
1. EBP is necessary	4.3 ± 0.9	0.72	0.53	0.86
2. Literature and research findings are useful	4.1 ± 0.8	0.60	0.39	0.88
3. I am interested in improving EBP skills	4.3 ± 0.8	0.74	0.57	0.86
4. EBP improves quality of patient care	4.1 ± 0.9	0.83	0.72	0.85
5. EBP assists me in decision making	4.2 ± 0.9	0.82	0.70	0.85
6. EBP places an unreasonable demand on my practice	3.6 ± 1.0	0.56	0.32	0.89
Skills: Identification of the research question^b
7. Identifying knowledge gaps in practice	3.7 ± 0.7	0.60	0.36	–^c
8. Identifying answerable clinical questions	3.9 ± 0.8	0.60	0.36	–^c
Skills: Locating research^d
9. Locating literature	3.8 ± 1.0	0.82	0.67	0.89
10. Online database searching	3.6 ± 1.1	0.85	0.71	0.88
11. Retrieving evidence	3.5 ± 1.0	0.85	0.73	0.87
Skills: Application of EBP^e
12. Critical appraisal of evidence	3.5 ± 0.9	0.67	0.55	0.88
13. Synthesis of research evidence	3.3 ± 0.9	0.74	0.63	0.87
14. Applying research to patient cases	3.7 ± 0.9	0.73	0.63	0.88
15. Sharing evidence with colleagues	3.3 ± 1.0	0.61	0.43	0.89
16. Conducting clinical research	2.1 ± 1.0	0.62	0.48	0.89
17. Using clinical research findings	3.7 ± .87	0.70	0.58	0.89
18. Conducting systematic reviews	2.5 ± 1.1	0.65	0.52	0.88
19. Using findings from systematic reviews	3.3 ± 1.1	0.71	0.57	0.88
Use^f
20. Reviewed professional literature	2.0 ± 1.3	0.83	0.77	0.91
21. Reviewed clinical research	1.8 ± 1.3	0.86	0.81	0.90
22. Used professional literature to assist	1.5 ± 1.3	0.85	0.77	0.91
23. Used professional literature to change	1.3 ± 1.2	0.81	0.72	0.91
24. Used an online database	1.4 ± 1.4	0.76	0.59	0.92
25. Used an online search engine	1.9 (1.3)	0.63	0.40	0.93

^{^a}

To compute the attitudes subscore, reverse-code 6 and sum items 1–6.

^{^b}

To compute the identification of the research question subscore, sum items 7 and 8.

^{^c}

Could not be computed because of small number of items on subscale.

^{^d}

To compute the locating research subscore, sum items 9–11.

^{^e}

To compute the application of EBP subscore, sum items 12–19. To compute an overall skills subscore, sum items 7–19.

^{^f}

To compute the use subscore, sum items 20–25.