TY - JOUR T1 - Psychological treatment outcomes in routine NHS services: What do we mean by treatment effectiveness? JO - Psychology and Psychotherapy: Theory, Research and Practice PY - 2012/01/01 AU - Barkham M AU - Stiles WB AU - Connell J AU - Mellor-Clark J ED - DO - DOI: 10.1111/j.2044-8341.2011.02019.x VL - 85 IS - 1 SP - 1 EP - 16 Y2 - 2025/06/24 ER -