Machado Paulo P P, Fassnacht Daniel B
Psychotherapy and Psychopathology Research Unit - CIPsi, School of Psychology, University of Minho, Braga, Portugal.
Department of Psychology, School of Arts and Social Sciences, James Cook University, Singapore, Singapore.
Psychol Psychother. 2015 Dec;88(4):427-37. doi: 10.1111/papt.12048. Epub 2014 Dec 8.
The Outcome Questionnaire (OQ-45) is one of the most extensively used standardized self-report instruments to monitor psychotherapy outcomes. The questionnaire is designed specifically for the assessment of change during psychotherapy treatments. Therefore, it is crucial to provide norms and clinical cut-off values for clinicians and researchers. The current study aims at providing study provides norms, reliability indices, and clinical cut-off values for the Portuguese version of the scale.
Data from two large non-clinical samples (high school/university, N = 1,669; community, N = 879) and one clinical sample (n = 201) were used to investigate psychometric properties and derive normative data for all OQ-45 subscales and the total score.
Significant and substantial differences were found for all subscales between the clinical and non-clinical sample. The Portuguese version also showed adequate reliabilities (internal consistency, test-retest), which were comparable to the original version. To assess individual clinical change, clinical cut-off values and reliable change indices were calculated allowing clinicians and researchers to monitor and evaluate clients' individual change.
The Portuguese version of the OQ-45 is a reliable instrument with comparable Portuguese norms and cut-off scores to those from the original version. This allows clinicians and researchers to use this instrument for evaluating change and outcome in psychotherapy.
This study provides norms for non-clinical and clinical Portuguese samples and investigates the reliability (internal consistency and test-retest) of the OQ-45. Cut-off values and reliable change index are provided allowing clinicians to evaluate clinical change and clients' response to treatment, monitoring the quality of mental health care services. These can be used, in routine clinical practice, as benchmarks for treatment progress and to empirically base clinical decisions such as continuation of treatment or considering termination.
结果问卷（OQ - 45）是监测心理治疗效果时使用最广泛的标准化自评工具之一。该问卷专为评估心理治疗过程中的变化而设计。因此，为临床医生和研究人员提供常模和临床临界值至关重要。本研究旨在为该量表的葡萄牙语版本提供常模、信度指标和临床临界值。
来自两个大型非临床样本（高中/大学，N = 1669；社区，N = 879）和一个临床样本（n = 201）的数据用于研究心理测量特性，并得出所有OQ - 45子量表及总分的常模数据。
临床样本与非临床样本在所有子量表上均存在显著且实质性的差异。葡萄牙语版本也显示出足够的信度（内部一致性、重测信度），与原始版本相当。为评估个体临床变化，计算了临床临界值和可靠变化指数，使临床医生和研究人员能够监测和评估来访者的个体变化。
OQ - 45的葡萄牙语版本是一种可靠的工具，其葡萄牙语常模和临界分数与原始版本相当。这使临床医生和研究人员能够使用该工具评估心理治疗中的变化和效果。
本研究为葡萄牙语非临床和临床样本提供了常模，并调查了OQ - 45的信度（内部一致性和重测信度）。提供了临界值和可靠变化指数，使临床医生能够评估临床变化以及来访者对治疗的反应，监测心理健康服务的质量。在常规临床实践中，这些可作为治疗进展的基准，并为诸如继续治疗或考虑终止治疗等临床决策提供实证依据。
