Hardy G E, Barkham M, Shapiro D A, Reynolds S, Rees A, Stiles W B
Medical Research Council/Economic and Social Research Council Social and Applied Psychology Unit, University of Sheffield, UK.
Br J Clin Psychol. 1995 Nov;34(4):555-69. doi: 10.1111/j.2044-8260.1995.tb01489.x.
Depressed psychotherapy clients (N = 117) rated the treatment principle credibility of cognitive-behavioural (CB) and psychodynamic-interpersonal (PI) before they were randomly assigned to receive either eight or 16 sessions of one of these treatments, and they rated their expectations of the treatment to which they were assigned immediately before (initial credibility) and immediately after their first session (emergent credibility). Results indicated that before they were assigned to a treatment, clients rated CB treatment principle credibility higher than PI treatment principle credibility. After assignment, however, clients rated initial credibility similar regardless of whether they were assigned to CB or PI therapy, and their ratings of emergent credibility increased to a similar degree from immediately before to immediately after the first session in both treatments. Clients' endorsement of CB and PI treatment principle credibility predicted improvement in PI therapy but not improvement in CB therapy. Initial and emergent credibility of clients' assigned treatment predicted improvement for clients who received eight sessions of therapy, but not for clients who received 16 sessions of therapy. The implications of these findings are discussed.
患有抑郁症的心理治疗来访者（N = 117）在被随机分配接受认知行为疗法（CB）或心理动力人际疗法（PI）的8次或16次治疗之前，对这两种疗法的治疗原则可信度进行了评分，并且在首次治疗前（初始可信度）和首次治疗后立即（显现可信度）对所分配治疗的期望进行了评分。结果表明，在被分配到某种治疗之前，来访者对CB治疗原则可信度的评分高于PI治疗原则可信度。然而，在分配之后，无论被分配到CB疗法还是PI疗法，来访者对初始可信度的评分相似，并且在两种治疗中，他们从首次治疗前到首次治疗后的显现可信度评分都有相似程度的提高。来访者对CB和PI治疗原则可信度的认可预测了PI疗法中的改善情况，但未预测CB疗法中的改善情况。所分配治疗的初始和显现可信度预测了接受8次治疗的来访者的改善情况，但未预测接受16次治疗的来访者的改善情况。讨论了这些发现的意义。
