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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Invest Ophthalmol Vis Sci. 2009 Jan 17;50(6):2560–2566. doi: 10.1167/iovs.08-2693

Table 2.

Relation between Patients' Level of Confidence in Perceived Treatment and Accuracy of Perception

Level of Confidence (%)

Characteristic Very Sure Pretty Sure Somewhat Sure A Little Sure Not at All Sure
Actual group*
 Real 39.0 37.3 10.2 11.9 1.7
 Placebo 24.1 37.0 20.4 9.3 9.3
Perception
 Incorrect 26.0 42.0 22.0 6.0 4.0
 Correct 36.5 33.3 9.5 14.3 6.4
*

Irrespective of accuracy regarding perception of treatment group.