Direct Comparisons Between Person-Centered/nondirective Treatments and Cognitive,behavioral,or Interpersonal Therapies After

Direct comparisons between person-centered/nondirective treatments and cognitive,behavioral,or interpersonal therapies after controlling for researcher allegiance (Cuijpers et al.,2008) for the treatment of mild to moderate depression found that nondirective therapies were:

A) slightly more effective.
B) slightly less effective.
C) much less effective.
D) much more effective.