| Constructs and Responding Items |
| Behavioral Intention (BI) (Adapted from [13]) |
| BI1: I will adopt online teaching in the future. |
| BI2: I plan to adopt online teaching often. |
| BI3: I will continue adopting online teaching. |
| Attitude toward use (ATU) (Adapted from [28]) |
| ATU1: Online teaching makes teaching more interesting. |
| ATU2: I expect those aspects of my job that requires me to adopt online teaching. |
| ATU3: Adopting online teaching is a good idea. |
| Perceived usefulness (PU) (Adapted from [13]) |
| PU1: Online teaching is useful for my teaching. |
| PU2: Online teaching enhances my working effectiveness. |
| PU3: Online teaching enhances my working productivity. |
| Perceived ease of use (PEU) (Adapted from [13]) |
| PEU1: It is easy to learn how to use an online learning system for me. |
| PEU2: Online teaching is clear and understandable to me. |
| PEU3: It is easy for me to become skillful to conduct online teaching. |
| Subjective norm (SN) (Adapted from [55]) |
| SN1: My colleagues think that I should adopt online teaching |
| SN2: Faculty leaders think that I should adopt online teaching |
| SN3: Students think that I should adopt online teaching |
| Facilitating conditions (FC) (Adapted from [55]) |
| FC1: Training and manuals for how to conduct online teaching is available to me in my university. |
| FC2: Specialized instruction concerning online teaching is available to me. |
| FC3: A specific person or group is available to me for assistance when encountering difficulties conducting online teaching. |
| Self-efficacy (SE) (Adapted from [60]) |
| SE1. I can conduct online teaching even if there is no one to teach me. |
| SE2. I know enough to conduct online teaching. |
| SE3. I can conduct online teaching on my own. |
| Technological complexity (Adapted from [55]) |
| TC1: Online teaching is too complicated to learn how to use it. |
| TC2: Online teaching is a complex activity. |
| TC3: It is too time-consuming to teach online. |