Development of a program logic model and evaluation plan for a participatory ergonomics intervention in construction

Area of Science:

• Occupational Health
• Ergonomics
• Public Health Interventions

Background:

• Intervention studies in participatory ergonomics (PE) often lack detailed program planning and evaluation descriptions, hindering interpretation.
• This limits understanding of intervention fidelity and potential for Type III error (incorrect rejection of a null hypothesis due to flawed intervention implementation).

Purpose of the Study:

• To describe the program plan and evaluation of an ongoing participatory ergonomics intervention for floor layers.
• To demonstrate the utility of a logic model in guiding intervention delivery and evaluation.

Main Methods:

• Development of a logic model to outline the participatory ergonomics program plan.
• Implementation of process evaluations to assess program delivery fidelity.
• Utilization of summative evaluations to measure intervention efficacy.

Main Results:

• The logic model effectively described program elements and facilitated necessary modifications.
• Process evaluation identified deviations from the intended program delivery, indicating areas for improvement.
• Summative evaluation provided preliminary data on the program's effectiveness as implemented.

Conclusions:

• Inadequate reporting on program delivery can lead to misinterpretations of intervention efficacy.
• A logic model is a valuable tool for guiding the development, delivery, and evaluation of ergonomic interventions.
• Utilizing logic models enhances the clarity and interpretability of intervention study findings.