Final answer:
The credibility of Alvarez's memoir or Agoncillo's research findings depends on the context and content. Alvarez's first-person account can be credible for subjective viewpoints, while Agoncillo's scientific research can be credible for objective information and evidence.
Step-by-step explanation:
The answer to the question depends on the context and content of the memoir by Alvarez and the research findings of Agoncillo. If Alvarez's memoir provides first-hand accounts and personal experiences, it can be considered more credible in terms of subjective viewpoints and emotions.
However, if Agoncillo's research findings are based on scientific methodology, peer-reviewed sources, and verifiable data, they can be deemed more credible in terms of objective information and evidence. Therefore, it is impossible to determine which account is more credible without further context.