Psychology, Umeå University, Umeå, 90187, Sweden.
Psychother Res. 2012;22(4):475-88. doi: 10.1080/10503307.2012.674790. Epub 2012 Mar 26.
The study utilized a generalizability theory analysis of adherence and competence ratings to evaluate the number of sessions and patients needed to yield dependable scores at the patient and therapist levels. Independent judges' ratings of supportive expressive therapy (n = 94), cognitive therapy (n = 103), and individual drug counseling (n = 98) were obtained on tapes of sessions from the NIDA Collaborative Cocaine Treatment Study. Generalizability coefficients revealed that, for all three treatments, ratings made on approximately five to 10 sessions per patient are needed to achieve sufficient dependability at the patient level. At the therapist level, four to 14 patients need to be evaluated (depending on the modality), to yield dependable scores. Many studies today use fewer numbers.
该研究采用概化理论分析，对坚持和能力评分进行评估，以确定在患者和治疗师层面产生可靠评分所需的治疗次数和患者人数。对 NIDA 合作可卡因治疗研究中各治疗组的治疗会谈录音，由独立评估者进行支持性表达治疗（n=94）、认知治疗（n=103）和个体药物咨询（n=98）的评分。概化系数显示，对于所有三种治疗，每个患者大约需要 5 到 10 次会谈的评分，才能在患者层面达到足够的可靠性。在治疗师层面，需要评估 4 到 14 名患者（取决于治疗模式），以得出可靠的评分。目前许多研究使用的评估次数更少。
