ABSTRACT

Background

Precise evaluation of decisional balance status of victims with substance use disorder is essential for individualized treatment plans. Decisional Balance Scale (DBS) has been proven useful for this purpose. We translated DBS to traditional Chinese (CDBS) and examined the psychometric properties.

Methods

A total of 173 outpatients with heroin or methamphetamine use disorder completed CDBS. We performed exploratory factor analysis to explore the structure of CDBS. We also examined internal consistency, item analysis, and test–retest reliability. The validity was tested by comparing respondents’ scoring (1) in different stages of change and (2) before/after group psychotherapy.

Results

The CDBS had identical structure as the original DBS. Two subscales (“Pros” and “Cons” of using drugs) were identified and each composed of 10 items. Item analysis revealed no redundant items. The Cronbach’s alpha for the Pros and Cons subscales were 0.903 and 0.884, whereas the test–retest reliability were 0.372 and 0.431, respectively. Respondents in advanced stage of change and completing group psychotherapy had decreased Pros scores and increased Cons scores.

Conclusions

The validity and reliability of the CDBS were fair, though the test–retest reliability was lower than expected. The results supported CDBS to assess motivation of outpatients with illicit drug use disorder.

中文翻译：

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20项决策平衡量表繁体中文版的心理测量特性

摘要

背景

精确评估物质使用障碍受害者的决策平衡状态对于个体化治疗计划至关重要。决策平衡量表 (DBS) 已被证明可用于此目的。我们将 DBS 翻译成繁体中文 (CDBS) 并检查了心理测量属性。

方法

共有 173 名海洛因或甲基苯丙胺使用障碍门诊患者完成了 CDBS。我们进行了探索性因素分析来探索 CDBS 的结构。我们还检查了内部一致性、项目分析和重测信度。通过比较受访者在 (1) 在不同变化阶段和 (2) 团体心理治疗之前/之后的评分来测试有效性。

结果

CDBS 与原始 DBS 具有相同的结构。确定了两个分量表（“使用药物的优点”和“缺点”），每个分量表由 10 个项目组成。项目分析显示没有多余的项目。Pros 和 Cons 分量表的 Cronbach's alpha 分别为 0.903 和 0.884，而重测信度分别为 0.372 和 0.431。处于变革晚期和完成团体心理治疗的受访者的 Pros 分数降低，Cons 分数增加。

结论

CDBS 的效度和信度一般，但重测信度低于预期。结果支持 CDBS 评估门诊吸毒障碍患者的动机。