Although critical thinking (CT) skills are usually considered as domain general (Gabbenesch, 2006; Halpern, 2003), CT ability may benefit from expertise knowledge and skill. The current study examined both general CT ability and CT ability related to business scenarios for individuals (a) expert in business, (b) novice in business, and (c) with no business experience, as well as the effects of educational background on both general and business-related CT. Results are discussed in light of research and theory on CT and business, and implications for future research are discussed.