Final answer:
The correct model of program evaluation that benefits participants and stakeholders is Utilization-focused evaluation, which is participatory and aims at creating actionable, user-friendly results for program improvement.
Step-by-step explanation:
A program evaluator who determines that the results of the proposed evaluation will most benefit those who participate in the program or who are stakeholders will employ the Utilization-focused evaluation model. This model is centered around the idea that evaluations should be planned and conducted with careful consideration of how everything that is done, from beginning to end, will affect the use of the evaluation results. Participants and stakeholders work closely with the evaluator to ensure that the findings are understandable and actionable, directly benefiting the involved individuals and potentially leading to program improvements.
Understanding the context, such as community psychologist evaluators engaging in participatory evaluation, aligns with the principles of Utilization-focused evaluation. This evaluation approach empowers participants and focuses on creating conditions where traditionally underrepresented individuals can play an active role in the evaluation process, thus aligning with the transformative participatory evaluation (T-PE) philosophy which underscores consumer choice and involvement.
Therefore, to effectively employ the Utilization-focused evaluation, it's crucial for the evaluator to collaborate with program participants and stakeholders to determine the evaluation focus, having a significant emphasis on the practical application of the findings towards program enhancement and stakeholder benefit.