An examination of auditor hypothesis testing strategies in ‘tone at the top’ evaluations: Evidence of diagnostic knowledge structures

This study examines the tests auditors design to assess a client's ‘tone at the top’. By exploiting conceptual differences in the constructs of ethicality and competence, the study investigates auditor knowledge structures by disentangling auditor hypothesis testing strategies. The results of an experiment document that auditors design tests to yield evidence of unethical and competent, rather than ethical and incompetent, client management behaviour. This overall pattern of results, and in particular auditors' focus on seeking evidence of client management competence, is consistent with a diagnostic hypothesis testing strategy and is not consistent with a conservative testing strategy. Collectively, these results provide insights into how auditors' ‘tone at the top’ knowledge is organized and used.