key: cord-0703267-2ps3lqd4
authors: Mailizar, Mailizar; Burg, Damon; Maulina, Suci
title: Examining university students’ behavioural intention to use e-learning during the COVID-19 pandemic: An extended TAM model
date: 2021-04-28
journal: Educ Inf Technol (Dordr)
DOI: 10.1007/s10639-021-10557-5
sha: 9aa60f49f36c4a9e8df922202a11d30689f4dc36
doc_id: 703267
cord_uid: 2ps3lqd4

This present study aims to investigate factors that impact behavioural intention of university students on e-learning use during the COVID-19 pandemic. An online questionnaire was utilised to gather data from 109 students enrolled in one of the universities in Indonesia. The Technology Acceptance Model (TAM) was the primary framework employed for analysis, in which system quality and e-learning experience were included as external constructs to seek out a much better model to improve the understanding of students’ intention to adopt e-learning. An extended TAM model was developed and tested in this study. The model consists of six constructs: system quality, e-learning experience, perceived ease of use, perceived usefulness, attitude toward use, and behavioural intention. Structural Equation Modelling (SEM) and SMART PLS 3.0 software were applied for data analysis. The findings informed that the proposed model has been succefully explained factors university students use of e-learning during the pandemic in Indonesia. It suggested that attitude toward e-learning use was the most prominent construct to predict university students’ behavioural intention to use e-learning during the pandemic. Finally, this study offers recommendations for future research and practices.

The coronavirus diseases 2019 (COVID-19) that emerged in late December has spread around the globe. In response to this, many countries have imposed restrictions, including university closure. The literature shows that the closure of educational institutions would reduce the spread of infection disease (Kawano & Kakehashi, 2015; Wheeler et al., 2010) . Growing numbers of universities around the globe have rapidly transitioned course from offline to online learning, including Indonesia which has switched conventional classes to remote learning. Therefore, this leaves about 4000 higher education institutions in the country dependent on online teaching and learning.

A Learning Management System (LMS) such as Moodle, Blackboard and Brightspace are well-known technologies developed to support the implementation of distance teaching and learning processes (Dahlstrom et al., 2014; McGill et al., 2011) . By offering multiple learning tools, a LMS provides a virtual way of communicating and accommodates speed and allows effectiveness in instructional processes (Fathema et al., 2015) . In the context of this study, we investigated Learning Management System (Moodle), which is an e-learning platform being used at the university where the study was conducted.

Technology Acceptance Model (TAM) (Davis, 1986) is a widely used model in studies of users' technology acceptance (Cigdem & Topcu, 2015) . The main purpose of the model is to elucidate users' behaviours toward technology adoption (Chang et al., 2017) . Furthermore, previous studies have extended the TAM model, which has resulted in numerous external factors Martin, 2012; Williams & Williams, 2010) . conducted a meta-analysis study and found that subjective norm, experience, perceived enjoyment, computer anxiety, and self-efficacy are mostly used external factors for the TAM model. They also pointed out that experience is the fifth most frequently used external factor in the e-learning context.

The previous studies using experience as an external factor of TAM model looked at different types of users of e-learning, namely, employees (Lee et al., 2011 Purnomo & Lee, 2013) , students (Lau & Woods, 2008; Rezaei et al., 2008; Williams & Williams, 2010) , students and educators (Martin, 2012) , and teachers (De Smet et al., 2012) . Furthermore, prior studies used various kinds of experiences, such as internet experience (Premchaiswadi et al., 2012) , technology experience (Al-alak & Alnawas, 2011; Teo et al., 2017) , computer efficacy as user's prior experience (Waheed & Jam, 2010) , and online learning experience (Liu et al., 2010) . However, a few studies used e-learning experience in high school as an external factor to examine university students' behavioural intention toward e-learning utilisation. Moreover, a significant number of previous studies examined the impact of system quality on students and instructors' behavioural intention in adopting e-learning. The prior studies revealed that system quality has significantly impacted perceived usefulness (Fathema & Sutton, 2013; Fathema et al., 2015; Park et al., 2012) , attitude toward using (Fathema & Sutton, 2013) , and behavioural intention to use (Fathema & Sutton, 2013; Park et al., 2012) .

In the context of the COVID19 pandemic, several studies have addressed e-learning adoption issues during the pandemic in the context of higher education (Almaiah et al., 2020; Ho et al., 2020; Siron et al., 2020; Sukendro et al., 2020; Vladova et al., 2021) . In terms of Indonesian higher education, Siron et al. (2020) and (Sukendro et al., 2020) have conducted studies to explore factors predicting the use of e-learning during the pandemic. Both studies used the TAM model (Davis, 1986) as the theoretical framework. Sukendro et al. (2020) extended TAM model by adding facilitating condition as an external factor, while Siron et al. (2020) included experience, perceived enjoyment, and computer anxiety as external variables of the TAM model. However, their study did not particularly address the experience of e-learning use.

However, there is a dearth of study about university students' behavioural intention to use e-learning during the pandemic that adopts the TAM model with e-learning experience and system quality as external factors of the model, particularly in the context of developing counties, including Indonesia, where e-learning is not well adopted at universities before the pandemic. Therefore, this study aimed to examine factors predicting Indonesian university students' behavioral intention to use e-learning during the pandemic. The study adopted the TAM model as a theoretical foundation and employed Structural Equation Modelling (SEM) to assess the relationship between exogenous and endogenous constructs. It is necessary to conduct this study to understand factors affecting university students' intention to continue using e-learning during the pandemic and even beyond since the pandemic is still dangerous, and university closures are still extended in Indonesia. This study contributes to the literature regarding e-learning adoption during the pandemic in the context of higher education in a developing country. In addition, this study offers implications for universities and policymakers to better prepare for e-learning adoption during the pandemic and beyond.

According to Davis (1986) , how and when users will adopt and use new technology could be investigated by Technology Acceptance Model (TAM) (Fig. 1) . This model is the most widely used framework to investigate users' attitude and intention to adopt technology. Teo (2010) argues that TAM is efficient in explaining users' behaviour to use computing technology. According to Davis (1989) , behavioural intention is influenced by attitude toward use, and it is directly and indirectly affected by perceived ease of use and perceived usefulness. Attitude is an important factor in explaining users' technology usage behaviour (Cruz-Cárdenas et al., 2019) . In addition, (Davis, 1986) intention to use is a more progressive dependent variable compared to actual use (Teo, 2010) . Thus, in this current study, we used behavioural intention to use e-learning as a dependent variable.

System Quality (SQ), in this current study, refers to the quality associated to function, speed, features, and contents of LMS being used at the university. Previous studies showed that SQ had a significant influence on Perceived Usefulness (PU) of e-learning system (Fathema & Sutton, 2013; Park et al., 2012) . Furthermore, prior studies also reported that SQ significantly affected users' attitude (Fathema & Sutton, 2013; Fathema et al., 2015) , and behavioural intention to adopt the technology (Fathema et al., 2015; Park et al., 2012) . Based on the existing literature, we proposed three hypotheses as to how SQ relates to PU, AT, and BI. 

Experience is defined as "an individual's involvement or action in something over a period of time" (Abbasi et al., 2011, p.37) . In this study, we refer to experience to the extent to which students involve or engage in a particular task using e-learning during their study in high schools. There is a body of literature, as mentioned earlier, examining the effect of experience on perceived ease of use (PEU) and perceived usefulness (PU). The prior studies found that experience positively impacted users' perceived ease of use toward e-learning usage Armenteros et al., 2013; Chang et al., 2017; De Smet et al., 2012; Lee et al., 2011; Tarhini et al., 2015) . Furthermore, it has been proven that past experience highly influenced users' perceived usefulness in using e-learning Chang et al., 2017; Liu et al., 2010; Martin, 2012) . Therefore, two hypotheses were offered to evaluate the effect of prior e-learning experience of university students on their PEU and PU.

H4:Previous e-learning experience (XS) significantly and positively affects Perceived Ease of Use (PEU) of e-learning. H5:Previous e-learning experience (XS) significantly and positively affects Perceived Usefulness (PU) of e-learning.

In the e-learning context, Lin et al. (2010) defined Perceived Ease of Use (PEU) as the extent to which users believe that employing an e-learning system will be effortless. Previous research has confirmed that perceived ease of use significantly affected perceived usefulness Binyamin et al., 2019; Joo et al., 2018; Zogheib et al., 2015) . Furthermore, prior studies showed that perceived ease of use strongly predicted attitude toward the use of e-learning (Fokides, 2017; Teo, 2012; Wong, 2015; Zogheib et al., 2015) . Based on previous studies, the following hypotheses were examined.

H6:Perceived Ease of Use (PEU) significantly and positively affects Perceived Usefulness (PU) of e-learning. H7:Perceived Ease of Use (PEU) significantly and positively affects Attitude toward Using (AT) of e-learning.

According to Lin, Chen, and Fang (2010) , in the e-learning context, perceived usefulness (PU) is described as the degree to which users believe that e-learning can support them to achieve teaching and learning objectives. Previous studies showed that PU had the most significant influence on attitude (Martinho et al., 2018; Ritter, 2017; Tarhini et al., 2015; Teo, 2012; Wong, 2015; Zogheib et al., 2015) . Furthermore, PU also had a significant impact on behavioural intention toward e-learning adoption Martinho et al., 2018; Scherer et al., 2019; Wong, 2015) . Based on the prior studies, we proposed the following hypotheses.

H8:Perceived Usefulness (PU) significantly and positively affects Attitude (AT) toward using e-learning. H9:Perceived Usefulness (PU) significantly and positively affects Behavioural Intention (BI) to use e-learning.

According to Kaplan (1972) , attitude as a tendency in response to an event in a favourable or an unfavourable way. Previous studies on e-learning acceptance have indicated attitude as a determinant factor of behavioural intention toward e-learning usage (e.g., Cheung & Vogel, 2013; Tosuntaş et al., 2015) . Attitude is found to be a dominant factor to influence behavioural intention (Chu & Chen, 2016; Hussein, 2017; Teo, 2012; Teo et al., 2017; Zogheib et al., 2015) . Drawing upon the findings of those studies, we formulated the following hypothesis.

H10:Attitude (AT) significantly and positively affects Behavioural Intention (BI) to use e-learning.

Behavioural Intention (BI) is "a cognitive process of individuals' readiness to perform specific behaviour and is an immediate antecedent of usage behaviour" (Abbasi et al., 2011) . BI is the key factor that determines the success of a system Armenteros et al., 2013; Chang et al., 2017; De Smet et al., 2012; Lee et al., 2011; Tarhini et al., 2015) . In the initial TAM model (Davis, 1989) , attitude, perceived usefulness and perceived ease of use have an impact on BI.

The discussion presented previously suggests that prior e-learning experience and system quality are critical determinants of attitude and behavioural intention of e-learning usage. As mentioned earlier, in the current study, students' experiences in e-learning during their high school and system quality were added as external factors of the TAM model, as shown in Fig. 2 .

In this current research, we employed a quantitative approach with a cross-sectional survey (Fraenkel, 2011) . We used this method as it is considered being able to provide reliable, valid, and generalisable findings (Fraenkel et al., 2011) . Furthermore, a questioner survey can be administered to a large number of respondents. In addition, a quantitative study enables researchers to make a generalisation about a population when the data are collected from a representative sample (Fraenkel et al., 2011) .

In this study, we adapted research instruments to measure factors predicting the university students' adoption of e-learning during the pandemic. Regarding system quality, Fig. 2 The structural model of the hypotheses items were adopted from (Pham et al., 2019) . Furthermore, for the other constructs, we adopted from (Al-Adwan et al., 2013; Davis, 1989; Venkatesh & Bala, 2008) . Regarding the adaptation process, for the present study, the instrument was established in which indicators were differed and developed to suit the context of using e-learning during the pandemic. In the first phase, 32 indicators were established for the instruments based on TAM construct TAM constructs (PEU, PU, AT and BI) with two external variables, namely e-learning experience (XS) and system quality (SQ). The instrument was then discussed with three experts as part of content validity to ensure the instrument is appropriate the context of the study (Lynn, 1986) . After validation, four indicators were dropped, the remaining 28-questions were distributed for a pilot test. Aiming to examine initial reliability before the data collection, we evaluated Cronbach's alpha, and the result showed that there was no construct that has an alpha value below the threshold of 0.7 as suggested by Hair et al. (2016) . The final version of the research instrument is attached in the Appendix Table 8 .

The population of this study were about 15.000 students enrolled at one of the public universities in Indonesia. They enrolled at a four-year undergraduate program in various program of studies. In total, there were 109 students who responded to the questionnaires. According to Hair et al. (2016) , a quantitative study requires an adequate sample size. Various rules have been suggested to determine an adequate sample size for regression analysis. Hair et al. (2016) suggests that the most widely used sample size estimation method in PLS-SEM is the '10-time rules', indicating that sample size should be equal to the larger values between the construct with the biggest number of formative indicator and the endogenous construct with the largest number of independent exogeneous construct predicting it. The endogenous construct. Considering the sample size consideration, 109 responses of the survey are a sufficient number of sample size. Further details of the participants' background information are presented in Table 1 .

Prior data collection, we acquired ethical approval for this study. Futhermore, we used a questioner survey as it is one of a widely used methods in technology acceptance research (Lew et al., 2019) . Furthermore, we conducted an online survey due to its easiness and accessibility to multiple devices (See., Fraenkel et al., 2011) . As the participants were studying from home, we approached the participants through a message feature in the e-learning system and WhatsApp group. A link to a questionnaire hosted on Google form was sent to participants and the questionnaire was open for two weeks.

We utilised structural equation modelling (SEM) to examine the proposed hypotheses. Partial least squares SEM (PLS-SEM) is a suitable choice regarding the aim of this study. As such, we employed SMART PLS 3.0 to measure confirmatory factor analysis (CFA) and to confirm the reliability, validity, and internal consistency of the model.

In this section, we report the results of factor analysis and hypothesis testing.

To assess factor analysis, we first identified six constructs included in our model namely, PEU, PU, AT, BI, XS, and SQ. The structural model and its path coefficients are depicted in Fig. 3 .

To examine the predictive accuracy of the model, we determined R 2 values. From Fig. 3 , it shows that R 2 is 0.571 for BI. This indicates that the three exogenous constructs (SQ, PU and AT) explain 57.1% of the variance in BI (Hair et al., 2017 ). The inner model shows that AT is the only strong predictor of BI (β = 0.513, t-value = 5.299), on the other hand, SQ (β = 0.081, t-value = 1.062) and PU (β = 0.119, t-value = 1.033) are not. Having t-value < 1.645 for a significant level of 5% (α = 0.05) in the one-tailed test indicates that SQ and PU did not possess a strong positive relationship with BI (Hair et al., 2017) .

Referring to AT as an endogenous construct, the model indicates that R 2 is 0.666 for AT. This implies that the three constructs (SQ, PEU and PU) explain 66.16% of the variance in AT. This model also indicates that PU is the strongest predictor of AT (β = 0.535, t-value = 6.951), followed by SQ (β = 0.270, t-value = 3.447) and PEU (β = 0.141, t-value = 2.138), Having t-values > 1.645 for significant level of 5% (α = 0.05) in the one-tailed test concludes that PU, SQ and PEU had a significant relationship with AT (Hair et al., 2017) .

Furthermore, for PU as an endogenous construct, Fig. 3 shows that R 2 is 0.443, indicating that the two constructs (PEU and XIT) explain 44.3% of the variance in PU. The model reveals that SQ is the strongest predictor of PU (β = 0.417, t-value = 4.822) and PEU follows (β = 0.317, t-value = 4.056). This confirms that both SQ and PEU had a strong positive relationship with PU. Additionally, we employed three assessment criteria, namely convergent validity, internal consistency reliability, and discriminant validity to assess the theoretical model. First, regarding convergent validity, we examined the outer loadings of the indicators and the averaged variance extracted (AVE) (Hair et al., 2017 ). An adequate convergent validity is indicated by loading values equal or larger than 0.7 (Hair et al., 2017) . Second, composite reliability (CR) was measured to confirm internal consistency reliability. CR values above 0.7 means adequate consistency reliability. Third, we employed the cross-loading criterion (Hair et al., 2017) and the Heterotrait-Monotrait ratio of correlation (HTMT) (Henseler et al., 2015) to assess discriminant validity. Constructs meet established discriminant validity when the square roots of AVEs for all constructs are higher than the value of inter-construct on the same columns and row. Table 2 presents loading values, CR and AVE of the constructs. Except for the indicator of PEU1, which was removed, all indicators had loadings over 0.7, indicating acceptable and high convergent validity (Hair et al., 2017) . It implies that the indicator reliability was satisfied. In addition, values of AVE reached the satisfactory level of AVE (≥ 0.5), which indicates that convergent validity was evident (Hair et al., 2017) . As a result, it confirms that the constructs satisfied the requirement of reliability and convergent validity. Table 3 demonstrates that every construct had adequate discriminant validity for AT (0.859), BI (0.913), PEU (0.856), PU (0.869), SQ (0.894), and XS (0.849). Furthermore, Table 4 shows that the loading values of all indicators on the computed constructs were all higher than the loading values on the other constructs. This indicates that the indicators of the other constructs were interchangeable.

As suggested by Henseler (2010), we also made use of Heterotrait-Monotrait ratio of correlation (HTMT), which is another method to examine discriminant validity. This method is to confirm that the constructs included in this study differ from one to another. Table 5 shows that there was no confidence interval of HTMT value that contains the value of 1, indicating that the constructs had sufficient discriminate validity (See., Henseler, 2010) . As a result, it is confirmed that the constructs had sufficient discriminant validity.

The results of the structural model are shown in Table 6 . First, we addressed the lateral collinearity issue by measuring the variance inflation factor (VIF). VIF values need to be above 0.2 and below 5.0 (Hair et al., 2017) . Table 6 indicates that all of the inner VIF values were above 0.2 and below 5.0. Hence, it is confirmed that there was no concern about lateral multicollinearity of this study. Second, using the bootstrapping function of SMART PLS 3, we generated t-values for all paths to test the significant level. Moreover, to evaluate the effect size of SQ, PU, and AT on BI, in addition to the effect size of SQ, PEU and PU on AT, we used Cohen's f 2 (Cohen, 2013) .

Overall, Table 6 reveals that six out of ten relationships had t-value > 1.645. Therefore, they were significant at 0.05 level of significance. Experience using e-learning (XS), with (β = 0.117, t-value = 0.813, p > 0.05), did not significantly affect PEU. Therefore, hypothesis 4 was not supported. SQ (β = 0.417, t-value = 4.822, p < 0.001) and PEU (β = 0.317, t-value = 4.056, p < 0.001) significantly affected PU. Therefore, hypothesis 1 and hypothesis 6 were supported. In term of effect size, referring to Cohen (2013) , f 2 for SQ (0.237) and PU (0. 140) were regarded as small effect size. On the other hand, XS (β = 0.120, t-value = 1.431, p > 0.05) did not significantly affect PU.

In respect of attitude toward using (AT), SQ (β = 0.270, t-value = 3.447, p < 0.001), PEU (β = 0.141, t-value = 2.138, p < 0.05) and PU (β = 0.535, t-value = 6.951, p < 0.001) significantly influenced AT. Hence, hypothesis 2, hypothesis 7 and hypothesis 8 were supported. Effect sizes for SQ (0.134) and PEU (0.041) were considered small, while the effect size for PU (0.489) was considered large.

Concerning behavioural intention (BI), only one out of three relationships were found to have t values > 1.645. AT significantly affected BI (β = 0.604, t-value = 5.299, p < 0.001). Therefore, hypothesis 10 was supported. However, SQ (β = 0.081, t-value = 1.062, p > 0.05) and PU (β = -0.119, t-value = 1.033, p > 0.05) did not significantly affect BI. Therefore, Hypothesis 3 and Hypothesis 9 were rejected. According to Cohen (2013) , f 2 for AT (0.204) was considered as a large effect. Finally, Table 7 highlights summary of the results of hypothesis testing. 

The present study mainly attempts to evaluate factors that contribute to university students' behavioural intention in using e-learning during the COVID-19 outbreak. This study is distinct from the previous studies since it investigated college students who would be secondary school teachers at a university in a developing country where the use of e-learning is not familiar to students. Hence, it is necessary to investigate this issue to advance understanding of what factors play a critical role in the use of e-learning among students. To explore this issue, we adopted the TAM model , with external factors of their prior e-learning experiences in high schools and quality of e-learning system being used at university. The hypotheses related to TAM scales and the external factors were examined. This study shows three important points of discussion. First, students' prior e-learning experiences in high schools did not significantly affect PEU and PU of e-learning at university. This finding contradicts previous studies that showed prior experience gave a positive impact on users' PEU and PU (Lau & Woods, 2008; Martin, 2012; Rezaei et al., 2008; Williams & Williams, 2010) . However, there are several existing studies that indicated that prior experience does not have a significant impact on users' acceptance of e-learning. For instance, Hrtoňová et al. (2015) claim that prior experience with e-learning does not play a significant role because digital technologies are becoming an ordinary part of education. Furthermore, they argued that their finding contradicts the literature because their study focuses specifically on prior experience with e-learning. In the present study, we also addressed a very specific experience, which is the e-learning experience when the students studied in high schools. Therefore, we argue that the insignificant effect of e-learning experience on PEU and PEU happens because we assessed a specific type of experience. Another possible reason that can explain this finding is that results of the quantitative analysis showed that students' average score on e-learning experience was very low, indicating they have insufficient experience of utilising e-learning when they studied in high schools. Low adoption of e-learning in secondary schools has been revealed by (Mailizar & Fan, 2020) . A number of students who did not have (Hrtoňová et al., 2015) . In addition, this finding may be shaped by other factors, including students have been using e-learning during the pandemic without proper preparation. In the context of COVID 19, Sukendro et al. (2020) showed that perceived usefulness did not significantly affect students' attitude toward e-learning. This finding is also not in line with the mainstream literature regarding the acceptance of e-learning.

Second, e-learning quality played a significant impact on students' perceived usefulness (PU) and attitude toward using (AT) but insignificantly affected behavioural intention (BI) to utilise e-learning. This finding confirms prior studies that suggested system quality positively affected perceived usefulness (Fathema & Sutton, 2013; Park et al., 2012) and attitude (Fathema & Sutton, 2013) . However, the finding of the present study challenges the previous studies revealing that system quality significantly influenced behavioural intention to adopt e-learning (Fathema & Sutton, 2013; Park et al., 2012) . This finding indicates that aspect related to technical quality of the system such as ease of access, capacity of system to meeting user' need, and flexibility of the system are all important aspect and contribute to perceived of usefulness of e-learning system during the university closured due to the COVID 19 pandemic where the users were not well prepared to use such system.

Third, regarding attitude toward using (AT) of learning management system, this current study suggests that system quality, perceived ease of use and perceived usefulness significantly affected attitude toward using e-learning. Furthermore, PU was the strongest predictor of AT. Previous studies have shown the urgency of PU for attitude toward using e-learning (Hamid et al., 2016; Hess et al., 2014; Mou et al., 2017) . Accordingly, this finding agrees to our prediction that SQ, PEU and PU of e-learning significantly affected students' attitude toward using e-learning.

Fourth, in relation to students' BI, our findings pointed out that only attitude significantly influenced intention to use e-learning. Similarly, several prior research have found the criticality of attitude (AT) for behavioural intention (Hussein, 2017; Letchumanan & Tarmizi, 2011; Sharma & Chandel, 2013; Taat & Francis, 2019) . In contrast with mainstream literature, the present study suggested that system quality and perceived usefulness insignificantly influenced students' intention toward e-learning use. With regard to PU, previous studies have shown that perceived usefulness (PU) directly affected usage intention of e-learning (Al-Gahtani, 2016; Elkaseh et al., 2016; Hsia et al., 2014; Lee et al., 2014; Tarhini et al., 2014 Tarhini et al., , 2016 . In connection with QS, previous studies also reported that it significantly affected user's intention (Fathema & Sutton, 2013; Fathema et al., 2015; Park et al., 2012; Rafique et al., 2020) . Nevertheless, a few studies found the similar findings that PU was non-significant to the prediction of behavioural intention toward e-learning use (Lew et al., 2019) . According to Lew et al. (2019) , the insignificant effect of perceived usefulness toward behavioural intention indicates that resistance towards new technology may not be as crucial as it once was. For example, perceived usefulness was also a weak predictor for students' behavioural intention to use YouTube for procedural learning (Lee & Lehto, 2013) and student behavioural intention to adopt mobile technology for student-teacher interactions (Sim & Finger, 2012) . The insignificant impact of perceived usefulness on students' intention to use e-learning may signify a shift in the thinking paradigm among users who are adept and savvy with digital technologies (Gan & Balakrishnan, 2018) . Furthermore, this study took place during the university closure in the COVID-19 pandemic. In this situation, there are limited options available to support remote learning, one of them is a learning management system. In such circumstance, when students did not have many options for remote learning, perceived usefulness, and system quality of e-learning might become less important factors for them in deciding to use the technology. For that reason, this study leaves this issue for future works that need to be explored.

This study proposes a model for understanding university students' intention to adopt e-learning while the spread of COVID-19 prevents the conventional learning. The technology acceptance model (TAM) was employed for analysis in which system quality and e-learning experience were included as external constructs. The proposed theoretical model effectively explains the behavioural intention (R2 = 0.571) of university students to use the e-learning system during the COVID 19 pandemic. The findings suggested that system quality strongly affected students' perceived usefulness and attitude toward e-learning. On the other hand, prior e-learning experience did not significantly affect students' perceived ease of use and perceived usefulness of e-learning. Furthermore, students' behavioural intention to utilise e-learning during the outbreak was significantly influenced by attitude toward e-learning.

This study suggests that for students who are not familiar with e-learning at the university to be willing to continue using e-learning during the pandemic and beyond, system quality and their attitude toward e-learning are vital. Therefore, this study indicates that it is crucial to ensure that the university has a good quality of the e-learning system. Furthermore, the university also needs to maintain a positive student attitude toward e-learning as it is the most significant factor to predict student use of e-learning. This study showed that students attitude was significantly influenced by their perceived ease of use and perceived usefulness of e-learning. Based on those relationships, we conclude that to ensure the sustainable use of e-learning during the pandemic and beyond, the quality of the e-learning system is crucial. Therefore, universities must maintain and improve the quality of the system. Finally, it is worth acknowledging several limitations of this study and addressing them ahead. First, the participants of this current study were only from one university in Indonesia. It might shape the generalizability of the findings. Also, in terms of gender, the participants of this study dominated by female students (88.7%) while male students only 11.3%. This imbalanced gender representation might slightly provide a biased result. Second, the present study only included two external factors, namely prior e-learning experience and system quality. At the same time, other external factors of behavioural intention to use e-learning during the pandemic may also exist. As a result, any future studies should consider other external variables of e-learning adoption. Last, as the present study showed that system quality and perceived usefulness did not significantly affect university students' behavioural intention to adopt e-learning during the outbreak of COVID-19; thus, it needs a further study aiming to explore this issue. 

The use of e-learning during university closure due to the COVID 19 pandemic helps me to access learning resources PU2 Using e-learning will improve learning performance in distance learning during the COVID 19 pandemic

The use of e-learning will increase my productivity in distance learning during the COVID 19 pandemic

The use of e-learning is beneficial for my learning activities during the COVID 19 pandemic Perceived Ease of Use (PEU)

Learning to use e-learning system in distance learning during the COVID 19 pandemic is easy PEU3 It is easy to navigate my university's e-learning system in distance learning during the COVID 19 pandemic

The use of an e-learning system during the COVID 19 pandemic is flexible Attitude (AT) AT1 I like the use of the e-learning system during the COVID 19 pandemic

The use of an e-learning system during the COVID 19 pandemic is a good idea

The use of an e-learning system during the COVID 19 pandemic is an interesting idea AT4 I think the use of e-learning system is a trend during the COVID 19 pandemic Behavioural Intention BI1 I want all courses are offered via an e-learning system during COVID 19 and beyond BI2 I will use e-learning if it is available in the post-COVID 19 pandemics BI3 I will recommend using an e-learning system in the future

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Acknowledgements We would like to thank all individuals participated in this study and also Realistic Mathematics Education Research Centre, Syiah Kuala University for the substantial contribution to this study.