Examination of Randomized Controlled Trials of Evidence-Based Treatments,summarized by Hansen

Examination of randomized controlled trials of evidence-based treatments,summarized by Hansen et al.(2002) ,indicates that

A) evidence-based treatments are more effective than treatment as usual.
B) patients attended fewer sessions in evidence-based treatments.
C) less half of patients recovered in evidence-based treatments.
D) treatment as usual was just as effective as evidence-based treatments.