「拖延」指的是自我調節的失敗、非理性延遲，也就是「儘管預計延遲會更糟，仍自願延遲預計的行動過程」。它是個很普遍的問題，同時也伴隨多種負面的影響，因此在學術研究以及臨床應用上，如何評估拖延的嚴重程度以及發展介入方案並檢測其改善成效，是一個很受到重視的問題。而其中，有良好信效度的拖延檢測量表就是一個重要的工具以幫助了解拖延的情形。「非理性拖延量表」（Irrational Procrastination Scale, IPS）具有題目少、有簡單的單維結構，以及有良好的信效度心理測量特性等優點，因此成為學術研究及應用上最廣被使用的拖延量表之一。其原版為英文，目前也已被翻譯成許多語言在世界各國進行過信效度檢測與施測使用，然而，此拖延量表目前尚無人發展出具台灣人信效度檢證的繁體中文版本，因此本研究最主要的目的，即是將非理性拖延量表翻譯成繁體中文，並針對台灣人進行心理特性（信效度）之檢驗，以利未來研究運用，並可提供跨文化研究使用以更確實地掌握拖延狀況，進行介入及檢測成效等。
為此本研究首先將非理性拖延量表進行了繁體中文化，然後招募了536 位受試者（多為大學生）施測，並進行了項目分析、驗證性因素分析、探索性因素分析、與其他量表相關分析以及內部一致性信度分析等。本研究將受試者隨機分半進行不同因素分析，一半進行驗證性分析，一半進行探索性分析，原本預期台灣版IPS為單因素模型，但經過項目分析與驗證性因素分析，我們發現第三、五題與總相關較低，並且因素負載量較低，單因素模型適配性不佳，另外，進行探索性分析後發現台灣版非理性拖延量表包含兩個因素：第一個因素為「非理性拖延行為」（7題），第二個因素為「拖延引發之懊悔情緒」（2題，第三與第五題）。本研究也發現本台灣版非理性拖延量表之內部一致性信度良好，並且如預期與「一般拖延量表」（general procrastination scale, GPS）、生活滿意度等皆有顯著相關。總結來說，本研究檢驗了繁中台灣版之非理性拖延量表，發現整體來說有良好的信效度，然後其因素結構可能是雙因素結構，而非預想的單因素，相關問題仍有待未來研究更進一步的檢證、調整，以建立良好可用的台灣繁體中文版非理性拖延量表。

Due to the prevalence of procrastination and the accompanying negative effects, having a good scale to measure procrastination can help us evaluate the severity of procrastination of a person. The Irrational Procrastination Scale (IPS) was short (has only 9 items), has a simple structure, and sufficient psychometric properties, so it has become a commonly used scale for measuring procrastination in English-speaking countries, and it has also attracted extensive attention from the international research community. There is currently no relevant research on the Taiwan version of the IPS, so this study will translate it into the Taiwan version to test its reliability and validity. For this purpose, we recruited 536 subjects, most of them from NCKU. In this study, subjects were randomly divided into half for different factor analysis, half for confirmatory factor analysis (CFA), and half for exploratory factor analysis (EFA). After item analysis and CFA, finding that the third and fifth items have a low correlation with the total, the factor loading was low, and the single-factor model was not well fitted. In addition, after EFA, it is found that the Taiwanese IPS contains 2 factors. The first factor has 7 items and the second factor has 2 items (the third and fifth items). At last, this study shows that the Taiwanese IPS has good internal consistency reliability and is significantly related to the general procrastination scale (GPS) and Satisfaction with Life Scale (SWLS).

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