The changes in our society such as environmental changes, risk behaviors, consumption patterns, family structure, population structure, and health inequity, are crucial factors influencing the Thai healthcare system (1). To improve the system effectiveness, health organizations now turn their focus on health promotion and the coordination among individuals, communities, health professionals, and health facilities (2). According to the rise of Good Governance scheme in Thailand, the participation between government officials and stakeholders has been increasingly promoted (3). In this situation, participation is an important key because individuals or groups can provide their contribution in activities which eventually increase organization commitment (4). Participation also provides opportunities for everyone to participate and take responsibility (5). In the health promotion context, participation also leads to economic development and a high quality of life because it is a tool that promotes both innovation and creation. Participation can be defined as participation in searching problem and solution (6), planning, acting, evaluating (7), and responsibility (8). Herzberg et al. stated that there are two separated parts of motivation in workplace (9). The first part is the motivator factor consisting of achievement, recognition, work itself, responsibility, and advancement. The second part is the hygiene factor consisting of salary, interpersonal relationship, advisory, work policy, work condition, work status, job security and personal life. Motivation is a vital factor because it is the source of desired workplace behaviors such as devotion, determination, effort, creation,
and commitment (10). A previous study in community hospitals in Pathum Thani also indicated that motivation has a positive relationship with the performance of registered nurses (11). Another vital factor affecting participation is organizational supports. Organizational supports can increase the confidence of personnel and the participation effectiveness. Resources, which are required for standard services, can increase participation in organizations (12). Man, money, material and management are widely accepted as primary resources for administration (13). The effectiveness and efficiency of administration depend on the completeness and quality of these supports (14). A previous study showed that three organizational supports, namely man, money and management, had a positive moderate relationship with the core competency performance of registered nurses in community hospitals in Udon Thani (15). Another study also showed that organizational supports had a positive moderate relationship with the epidemiological performance of health technical officers (16). In Thailand, most health organizations are responsible for four major services: health promotion, disease prevention, treatment and rehabilitation. These services are actively and passively provided by multi-professional teams. However, there are numbers of persistent problems in health promotion services. In 2013, there were services that were unable to meet the healthcare standards of Roi Et province; for example, skills training in maternal and child care, healthy community project, cervical cancer screening, and non- communicable diseases screening (17). In situations like this, health personnel must work as a team and health organizations