# Longitudinal Study on Construction Organization's BIM Acceptance
## 4 The Validation of 2019 BIM Acceptance Model  
### The Validation Results for the Measurement Model  
Firstly, to assess the research model's overall goodness of fit, the model-fit measures and their respective acceptance level shown in Table 2 were used. The acceptance levels used were as suggested by previous research [35; 36; 37; 38]. As a result of comparing the acceptance level with the model-fit indices of the proposed model (Table 2), most of the model-fit indicators were found to meet the acceptance level. RMR, TLI, and CFI were lower than the acceptance level but were close to the acceptance level. Therefore, it could be judged that the measurement model fit well with the collected data. \begin{table}
\begin{tabular}{c c} \hline \hline
**Constructs** & **Description** \\ \hline \multirow{2}{*}{**Organizational Competency (OC)**} & The openness to the introduction of new information technology such as the organization’s BIM, and the degree of providing resources (Hardware, Software), education, and incentives for the use of BIM. \\  & The suitability of BIM tools for personal work or collaboration and the quality of information collected using BIM tools. \\  & The openness to the introduction of new IT by individuals and the willingness to apply BIM to work. \\  & \multirow{2}{*}{**Behavior Control (BC)**} & Organizational and national policies to motivate organizational \\  & & members to use BIM, \\  & & members to use BIM, \\  & & BIM is not difficult. \\  & \multirow{2}{*}{**Perceived Usefulness (PU)**} & The recognition that BIM utilization is useful to improve the individual \\  & & work capabilities of employees and collaboration productivity. \\  & & The consensus among members of the organization regarding the tasks \\  & & and methods of applying BIM determined by the organization. \\  & \multirow{2}{*}{**Individual intention of BIM acceptance (IIA)**} & The willingness to use BIM for work and the willingness to recommend \\  & & it to others. \\  & & Not only encouraging the use of BIM in the organization, but also the \\  & & willingness to recommend it to other organizations in a collaborative \\  & & relationship, and furthermore, the willingness to participate in the \\  & & development of BIM application technologies. \\ \hline \hline \end{tabular}
\end{table} 
Table 1: The definition of constructs in the BIM acceptance model. Figure 1: Research model. Secondly, convergent validity is a concept to validate that there is a high correlation between measurements if the same concept is measured, and can be confirmed by analyzing the relationship between latent constructs and observed indicators, which are assessment items of latent constructs [11]. Convergent validity is evaluated by examining the factor loading, composite reliability (CR) of measures, and average variance extracted (AVE) by measures from the results of the confirmatory factor analysis (CFA). The recommended acceptance criteria suggested in previous studies should be factor loading of 0.5 or higher [36], CR value of 0.6 or higher [39], and AVE of 0.5 or higher [36]. The results of the CFA are shown in Table 3. As a result, the AVE values of TQ and BC did not meet the criteria.