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| Construct | Items | Reference source |
|
| Institutional pressure | PRES2: contract documents contain clear requirements for project quality and safety, handling public social events, and ecological environmental protection | Wang et al. [30]; Zheng [48] |
| PRES3: contents of construction standard specification regarding quality and safety of megaprojects, environmental protection, occupational health, green construction, etc. are specific |
| PRES4: project culture advocates the importance of engineering quality and safety, social impact, and ecological environmental protection |
| PRES5: project has strict supervision and information feedback on engineering quality and safety, occupational health, social impact, and ecological environment |
|
| Mutual feedback mechanism | MFM1: project has adopted effective communication methods such as charts, tables, etc. | Wu et al. [39]; Holland et al. [32] |
| MFM2: through regular meetings, information sharing between project parties is very accurate |
| MFM3: it is very timely to communicate with other participants through documents |
| MFM4: project team hopes that the participants know what the project is doing and why |
|
| Relationship quality | REQUA1: other project participants always abide by our commitment to us | Lu and Wang [38]; Xu et al. [49] |
| REQUA2: we can trust that the project participants are sincere |
| REQUA3: when making important decisions, the project participants will consider our interests. |
| REQUA5: we are satisfied with the project participants in terms of technology and management. |
| REQUA6: considering the overall performance of the project participants, it can be said that they have reached our expectations |
|
| External appeal | EXAPPE2: relevant government regulatory authorities require attention to social responsibility issues | Wang et al. [30]; Zhao [50] |
| EXAPPE3: the public is highly concerned about megaprojects, and the media frequently reports on project social responsibility. |
| EXAPPE5: relevant NGOs require projects to pay attention to social responsibility issues |
|
| Social responsibility cognition | SCAW3R: the society’s expectation for megaprojects is only to complete the construction task (R) | Xu and Liang [51]; Zheng [48] |
| SCAW4R: we must pay attention to the construction of megaprojects and should not assume social responsibility (R). |
| SCAW5R: taking social responsibility consumes our extra resources and deviates from the main project objectives (R) |
|
| Hypocritical behavior | HYBE1R: when we fulfill our social responsibilities, we can fully do what we say and do (R) | Wagner et al. [52]; Xiao et al. [53] |
| HYBE2R: we never make an empty social responsibility commitment® |
| HYBE3R: we will not pretend to perform social responsibility at any time (R) |
|
| Synergistic behavior | SYBE1: other participants can provide support to help us solve social responsibility problems | Yan et al. [54] |
| SYBE2: we can provide support to help other participants solve social responsibility issues. |
| SYBE3: when there is a social responsibility problem in the implementation of the project, there is no shirking responsibility. |
| SYBE4: participants actively and continuously consider social responsibility issues. |
| SYBE6: in the implementation of social responsibility behavior, the participants have maintained a good cooperative relationship |
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