Leochan (asker) Nov 26, 2009:

みなさん、お答えありがとうございました。
どの表現も使えそうで、本当に迷ってしまいます。原文は、評価する側の評価する能力に関して書かれたものなので、Yukiさんが提案してくださったpersuasiveが一番近いように思いました。
googleで検索してみると、原文と似たような文脈で使われている表現をいくつか見つけました。

The national trend of evaluation implementation as of the2006 school
year appears to indicate that the core appraisal principles offairness,
equality, objectivity, transparency, and persuasiveness are sufficiently
considered in personnel evaluations in Japan.


Brother is working on improvement of transparency and persuasiveness of
personnel
evaluation by clarifying the evaluation process and standards.


Our stance on personnel evaluation. Personnel evaluation includes skill
evaluation and bonus evaluation, both of which are conducted based on
the principles of fairness and convincingness.


To ensure thoroughness, impartiality, objectivity and soundness during
the evaluation process and comply with the laid down criteria of the
evaluation instructions.


He prepares the required statement of Personnel Evaluation Report for
professional staff specifying: (a) The thoroughness, objectivity,
soundness and compliance with evaluation instructions of the PER;...