Final answer:
The most appropriate assessment would be problem or health issue-based assessment, which focuses on identifying and addressing specific health problems or issues within a population.
Step-by-step explanation:
The most appropriate assessment in this case would be problem or health issue-based assessment. This assessment focuses on identifying and addressing specific health problems or issues within a population.
In the given scenario, the PHN is investigating the high number of work absences among factory employees. This assessment would involve examining the reasons behind the absences, such as illness, injuries, or other health-related issues.
By conducting a problem or health issue-based assessment, the PHN can identify the underlying causes of the absenteeism and develop targeted interventions to improve employee health and reduce work absences.