Translation and validation of the greek version of a questionnaire measuring patient views on participation in clinical trials

Table 2 Standardized Factor Loadings, Average Variance Extracted and Composite Reliability Estimates

Items	Patient expectations	Risks and benefits	Patients’ participation	Cost and convenience
31 Understanding—help you in future	0.801
29 Understanding—help you now	0.897
32 Understanding—help others in future	0.813
28 Understanding trial aim	0.848
30 Understanding—help others now	0.870
27 Part of medical research	0.739
22 Risks		0.927
21 Side effects		0.839
20 Purpose of treatment		0.873
19 Type of treatment		0.765
23 Benefits		0.778
25 Pain/discomfort		0.701
39 Ethically approved		0.759
38 Confidential		0.758
26 Quality of life		0.699
40 Person to contact during trial		0.816
17 Involved in discussions			0.896
16 Express views			0.803
18 Involved in decisions			0.805
15 Can ask questions			0.821
14 Receive clear information			0.774
34 Out of pocket costs				0.826
37 Need help in participation				0.740
33 Compensation				0.604
36 Travel				0.744
35 Convenient				0.856
AVE	0.631	0.688	0.674	0.576
CR Reliability	0.944	0.930	0.912	0.870

ISSN: 1472-6963