Padesky and Mooney (1990) proposed the

Grove et al found in a meta-analysis that

based approaches are better than

Walfish et al (2012) found that the average therapists thinks they are better than

of other therapists

Schulte (1997) suggested there was slim evidence that

works better than

According to Kuyken et al (2005) only 40% of therapists conducted

well enough

Found that treatment was better than a placebo that was better than no treatment, and that the effect size for treatment vs no treatment was .80

found that the NNT for psychological therapies was

Robinson, Berman and Neimeyer (1990) found that the effect size for therapy vs none was

and the effect size for treatment vs placebo was

found little difference between

in the Second Sheffield Psychology Project

Stiles et al (2008) found

effect sizes for

CBT

proposed common factors of unexplained variance (40%), therapy differences (8%) and therapist differences (7%)

proposed the contextual model of the

Lurborsky (1976) proposed two types of

Type 1:

Type 2:

proposed a model of working alliance consisting of goals, tasks and

Horvath (2011) found the alliance-outcome correlation to be

which is medium