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There is an established literature supporting the idea that families who have children and adults who have a learning disability and/or autism have a greater vulnerability to mental health problems or poor psychological health. There are shortcomings in this literature in that there is a little consideration of the impact the families interaction with services has on their well-being. It is argued that complex post-traumatic stress disorder (CPTSD), with its focus on prolonged chronic exposure to trauma experiences and the recognition that this can occur in adulthood, may well be an appropriate framework to enable a better understanding of the experiences of families.

A total of 214 family members completed a co-produced online survey in relation to potential traumatic events, impacts and support.

The experiences of family carers of children and adults with a learning disability and/or who are autistic would appear to be multi-layered and complex, with many experiencing a wide range of traumatic events with the associated emotional and personal sequela. The reported responses are consistent with CPTSD with 10% of having received a diagnosis of PTSD. Their experience was that the system failed not only to provide support but also created additional trauma.

A trauma-informed approach needs to be adopted by agencies and professionals that serve families to ensure they understand their potential contribution to the trauma families experience.

To the best of the authors’ knowledge, this is the first study that has attempted to examine the experience of families using the framework of CPTSD.

Modern construction projects are increasingly complex and rely heavily on multi-discipline collaboration, and this leads to a more and more decentralized project-based structure widely adopted in the construction industry. While job satisfaction (JS) and job performance (JP) have been heavily studied previously, few considered the impact of organizational structure and none investigated the relationship between the organizational decentralization degree with JS and JP. This research aims to fill this research gap and investigate the impacts of organizational decentralization degree on JS and JP and facilitate a better project management practice for large-scale construction projects.

This research firstly establishes four hypotheses based on the literature review on general project-based organizations, then the hypotheses are tested by a survey covering 25 large complex construction projects in China. A hierarchical linear model analysis was carried out to analyze the survey data and to study the relationships between organizational decentralization degree, job satisfaction and job performance.

Analysis results show that projects' employees' JS and JP are positively correlated with the construction project organizations' decentralization degree, respectively. The decentralization degree has a higher impact on JS than on JP. Employees' JP is positively correlated with their JS, and a higher decentralization degree leads to a more significant positive impact that JS puts on JP.

The findings are new evidence of how construction organization structure and its decentralization degree can affect project employees' JS and JP. This research provides valuable guidance for the industry's management practice and is particularly important for large, complex and highly decentralized construction projects.