Inheriting vs. Developing Data Analytic Tests and Auditors’ Professional Skepticism

Auditors’ use of audit data analytic (ADA) tests carries tremendous potential for the quality of financial statement audits and auditors’ application of professional skepticism (e.g., Austin, Carpenter, Christ, and Nielson 2021). As the use of ADA tests becomes increasingly established in practice, auditors will likely transition from developing ADA tests themselves to a situation where they typically inherit ADA tests developed by others. For example, auditors may inherit ADA tests that are developed by other members of their audit team or their firm’s centralized analytics team.

In this study, we argue that inheriting ADA tests, as opposed to developing ADA tests by themselves, hinders auditors’ application of professional skepticism because inheriting decreases auditors’ psychological ownership of the tests. In an experiment where an ADA test identifies a fraud red flag, we find that auditors who inherited the ADA test are less skeptical than those who personally developed the ADA test. We further provide evidence that informing auditors who inherited the ADA test about the test development activities can substantially boost auditors’ skepticism levels. In practice, this development-related information could be conveyed via an ADA test development memorandum preceding the workpapers containing the ADA test. Informing auditors about ADA test development activities will likely become more important as auditors inherit more advanced forms of ADA tests, such as tests employing artificial intelligence technology.