Dr. Karla Zehms

Professor

Karla Zehms is the Ernst & Young Professor at the University of Wisconsin – Madison School of Business. She received her PhD from the University of Connecticut in 1997 and has spent her entire career at Wisconsin. She is a Wisconsin alumnus, having earned her MACC in 1991. She has been a visiting Professor at numerous other universities, including the University of New South Wales in Sydney, Australia. Her research interests include auditors’ client acceptance and continuance decisions, how fraud risk and fraud brainstorming affect audit planning and audit fees, client-auditor negotiation, and audit budget-setting processes, among others. She has published over 40 papers in leading journals, including the Journal of Accounting and Economics, Accounting, Organizations, and Society, the Journal of Accounting Research, The Accounting Review, Contemporary Accounting Research, Review of Accounting Studies, and Auditing: A Journal of Practice & Theory, among others. Professor Zehms has served on the Executive Committee of the Auditing Section of the AAA in the role of treasurer, Vice-President, President, and Past-President. She was previously an Associate Editor at Accounting Horizons and an Editor at Auditing: A Journal of Practice & Theory. She serves on numerous other editorial boards, both in the U.S. and internationally. She focuses her teaching in auditing, both at the undergraduate and graduate levels. She is also a co-author on an auditing textbook.

This study examines what drives auditors’ professional skepticism, a critical factor for audit quality. Using data from 663 auditors across six Dutch firms, the research explores how individual differences (such as gender, experience, and knowledge) and personality traits (Big Five and Dark Triad) influence skepticism.
It also applies the Theory of Planned Behavior to link skepticism traits with attitudes, social norms, and perceived control, showing how these factors shape intentions and actual skeptical actions during audits.
Key findings reveal that social pressure (subjective norms) is the strongest predictor of skeptical behavior, and that traits like conscientiousness, openness, and narcissism are positively associated with skepticism, while psychopathy and high agreeableness reduce it.
The study offers practical insights for audit firms and regulators on fostering a culture that promotes skepticism and improving interventions to enhance audit quality.
Auditing standards emphasize that fraud detection is an important objective of an audit and require the exercise of professional skepticism (PS) and a discussion among the engagement team to prevent and detect fraud. The purpose of this study is to examine whether professional skepticism is a driver of fraud brainstorming quality. We investigate the relationship between fraud brainstorming quality, using the measure of Brazel et al. (2010), and auditor’s professional skepticism traits. Using proprietary data from Dutch audit firms on 125 engagements, we find that neutral trait skepticism and professional moral courage of the partner have a significant effect on fraud brainstorming quality. We observe a higher attendance rate and contribution of specialists, more extensive discussion, longer preparation, and longer sessions for engagements led by partners with high neutral trait skepticism and high moral courage. We find no significant results for partners with a high presumptive doubt trait. Additional cross-sectional analyses show that the effect of professional skepticism on FBQ depends on situational, organizational conditions.  

KEY TAKE-AWAYS

We provide field-based evidence on antecedents to auditors’ skeptical actions, using over 600 auditors across all ranks from six audit firms as participants. We evaluate the relative importance of situational, client, and individual auditor characteristics, along with measures of auditors’ cognitive processing in relation to their self-reports of skeptical actions on one of their own audits. We find that the most important antecedents are each audit firm’s overall professional orientation, auditors’ individual feelings of accountability, their trait skepticism, their motivation to perform well on the engagement, and their intentions to behave skeptically. Auditors’ intentions are most influenced by social norms and less influenced by attitudes towards and self-efficacy about behaving skeptically. Other important antecedents include each audit firm’s quality control systems, certain individual auditors’ personality traits, their client-related industry expertise, and their audit knowledge. Our findings support various aspects of prior conceptual models and suggest ways in which audit firms can promote skeptical actions.

Auditing standards emphasize that fraud detection is an important objective of an audit and require the exercise of professional skepticism (PS) and a discussion among the engagement team to prevent and detect fraud. The purpose of this study is to examine whether professional skepticism is a driver of fraud brainstorming quality. We investigate the relationship between fraud brainstorming quality, using the measure of Brazel et al. (2010), and auditor’s professional skepticism traits. Using proprietary data from Dutch audit firms on 125 engagements, we find that neutral trait skepticism and professional moral courage of the partner have a significant effect on fraud brainstorming quality. We observe a higher attendance rate and contribution of specialists, more extensive discussion, longer preparation, and longer sessions for engagements led by partners with high neutral trait skepticism and high moral courage. We find no significant results for partners with a high presumptive doubt trait. Additional cross-sectional analyses show that the effect of professional skepticism on FBQ depends on situational, organizational conditions.
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