In one review of 29 studies involving treatment comparisons,Luborsky and colleagues (1999)found that the allegiance effect accounted for what percentage of the variance in reported outcome?

Question

Quizplus · Accepted Answer

Luborsky and colleagues (1999) found that the allegiance effect accounted for about two-thirds of the variance in reported outcomes in their review of 29 studies.

In One Review of 29 Studies Involving Treatment Comparisons,Luborsky and Colleagues