Final answer:
Weiss (1978) advocated stakeholder responsiveness but warned evaluators to maintain the overall credibility of the evaluation.
Step-by-step explanation:
In this question, the subject of discussion is stakeholder responsiveness and the credibility of the evaluation. Based on the information provided, Weiss (1978) advocated for stakeholder responsiveness in evaluations. This means that evaluators should consider the interests and feedback of stakeholders when conducting an evaluation. However, Weiss also warned that any changes made to address stakeholder concerns should not compromise the overall credibility of the evaluation.