The undertaken research investigates the extended unified theory of acceptance and use of technology (UTAUT) model from the perspective of online education in the deadliest period of COVID-19. This research investigates the extended dimensions, for instance, mobile self-efficacy and perceived enjoyment besides traditional elements of the UTAUT model with the relationship of behavioural intention and user behaviour of LMS. Since the COVID-19 led to social isolation (SIS), thus, this study has incorporated SIS as mediating factor and fear of COVID-19 (FOC) as the moderating factor for the considered extended model of UTAUT. The data of 1875 respondents was collected from five different Asian countries. For the data analysis, this study employed structural equation modeling through PLS-SEM and condition process modeling. This research demonstrates that the extended dimensions such as mobile self-efficacy, besides the traditional elements of the UTAUT model, exerted a cogent impact on behavioural intention except for the perceived enjoyment. Similarly, the behavioural intention demonstrated a substantial effect on the user behaviour of LMS. Additionally, social isolation as a mediating factor and FOC has a significant effect between dimensions of extended UTAUT model and behavioural intention of LMS. The outcomes of this research demonstrate significant theoretical and practical implications during the COVID-19 pandemic.

中文翻译：

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COVID-19 期间的扩展 UTAUT 模型和学习管理系统：来自 PLS-SEM 和条件过程建模的证据

所进行的研究从 COVID-19 最致命时期的在线教育的角度调查了技术接受和使用的扩展统一理论 (UTAUT) 模型。本研究探讨了除了 UTAUT 模型的传统元素之外的扩展维度，例如移动自我效能和感知享受，以及 LMS 的行为意图和用户行为的关系。由于 COVID-19 导致了社会隔离 (SIS)，因此，本研究将 SIS 作为中介因素和对 COVID-19 (FOC) 的恐惧作为所考虑的 UTAUT 扩展模型的调节因素。1875 名受访者的数据来自五个不同的亚洲国家。对于数据分析，本研究通过PLS-SEM和条件过程建模采用结构方程建模。本研究表明，除了UTAUT模型的传统元素外，移动自我效能等扩展维度对除感知享受外的行为意图产生了切实的影响。同样，行为意图对 LMS 的用户行为也表现出实质性影响。此外，社会隔离作为中介因素和 FOC 在扩展 UTAUT 模型的维度和 LMS 的行为意图之间具有显着影响。这项研究的结果表明在 COVID-19 大流行期间具有重要的理论和实践意义。行为意图对 LMS 的用户行为表现出实质性影响。此外，社会隔离作为中介因素和 FOC 在扩展 UTAUT 模型的维度和 LMS 的行为意图之间具有显着影响。这项研究的结果表明在 COVID-19 大流行期间具有重要的理论和实践意义。行为意图对 LMS 的用户行为表现出实质性影响。此外，社会隔离作为中介因素和 FOC 在扩展 UTAUT 模型的维度和 LMS 的行为意图之间具有显着影响。这项研究的结果表明在 COVID-19 大流行期间具有重要的理论和实践意义。