
Journal of Alternative and Complementary Medicine
| PMC full text: | Published online 2016 Nov 1. doi: 10.1089/acm.2016.0242
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Table 4.
\ Final 10-Item EXPECT Questionnaire: Reliability and Validity Statistics
| Community sample, n = 163 | Clinical trials, n = 244 | |
|---|---|---|
| Cronbach's alpha | 0.96 | 0.96 |
| Test–retest reliability, ICC (95% CI) | 0.75 (0.63–0.84) | |
| Floor effect (score of 0), n (%) | 2 (1.2) | 0 |
| Ceiling effect (score of 10), n (%) | 3 (1.8) | 7 (2.9) |
| Pearson correlations of the Expectations Questionnaire with other expectations measures | ||
| Credibility/Expectancy Questionnaire | ||
| Treatment credibility subscale | 0.54 | |
| Treatment expectations subscale | 0.65 | |
| Total score | 0.65 | |
| Acupuncture Expectancy Scale | 0.54 | |
| Treatment helpfulness rating | 0.60 | |