This study has several potential implications for research, policy, and practice. From a research perspective, the study’s findings respond to previous calls for research to expand our understanding of IAR effects (e.g., Archambeault et al. 2008). Specifically, this study extends prior research that examines IAR effects on users’ (e.g., investors’) judgments (Holt and DeZoort 2009) to consider IAR effects on preparers’ (internal auditors’) judgments. The study also extends the empirical IAR literature to include testing of IAR type effects, with the results indicating that assurance IARs and descriptive IARs have different effects on internal auditors’ judgment conservatism. Thus, while a simple descriptive IAR appears to add informational value from a user perspective (Holt and DeZoort 2009), such disclosure does not appear to significantly affect internal auditors’ judgments.