Guillén-Riquelme Alejandro, Buela-Casal Gualberto
Facultad de Psicología, Universidad de Granada, Granada, Spain.
Psicothema. 2011 Aug;23(3):510-5.
One of the psychological problems with highest prevalence is anxiety. The State Trait Anxiety Inventory is one of the instruments to measure it. This questionnaire assesses Trait Anxiety (understood as a personality factor that predisposes one to suffer from anxiety) and State Anxiety (refers to environment factors that protect from or generate anxiety). The questionnaire was adapted in Spain in 1982. Therefore, the goal of the study is to review the current psychometric properties of the STAI. A total of 1036 adults took part in the study. Cronbach's alpha reliability was .90 for Trait and .94 for State Anxiety. Factor analysis showed similar results compared with the original data. Moreover, differential item functioning (DIF) was carried out to explore sex bias. Only one of the 40 items showed DIF problems. Lastly, a t-Test was run, comparing the original and current values; whereas Trait Anxiety varied in 1 point, State Anxiety had differences of up to 6 points. In general, this result shows that the STAI has maintained adequate psychometric properties and has also been sensitive to increased environmental stimuli that produce stress.
患病率最高的心理问题之一是焦虑。状态-特质焦虑问卷是测量焦虑的工具之一。该问卷评估特质焦虑（被理解为使人易患焦虑的人格因素）和状态焦虑（指引发或防止焦虑的环境因素）。该问卷于1982年在西班牙进行了改编。因此，本研究的目的是回顾状态-特质焦虑问卷当前的心理测量特性。共有1036名成年人参与了这项研究。特质焦虑的克朗巴哈α信度为0.90，状态焦虑的克朗巴哈α信度为0.94。因素分析显示的结果与原始数据相似。此外，还进行了差异项目功能分析（DIF）以探究性别偏差。40个项目中只有一个显示出差异项目功能问题。最后，进行了t检验，比较原始值和当前值；特质焦虑变化了1分，状态焦虑的差异高达6分。总体而言，这一结果表明状态-特质焦虑问卷保持了足够的心理测量特性，并且对产生压力的环境刺激增加也很敏感。
