TY - CHAP T1 - Therapist effects, effective therapists, and the law of variability. T2 - How and why are some therapists better than others?: Understanding therapist effects. PY - 2017/02/03 AU - Barkham M AU - Lutz W AU - Lambert MJ AU - Saxon D ED - DO - DOI: 10.1037/0000034-002 PB - American Psychological Association SN - 9781433827723 SP - 13 EP - 36 Y2 - 2024/12/22 ER -