Date Thesis Awarded


Access Type

Honors Thesis -- Open Access

Degree Name

Bachelors of Science (BS)




Christopher Ball

Committee Members

Harvey Langholtz

John Parman


The present study seeks to examine the role of interference control in solving the Cognitive Reflection Test (Frederick, 2005). Participants were given the CRT, CRT-2, and completed a novel adaptation of the Stop-Signal Task called the Change-Signal Task. The Change-Signal Task is similar to a stop-signal paradigm except that the participant must switch their response when a change-signal is present in the Change-Signal Task instead of withholding a response. This study found that interference control as assessed by the Change-Signal Task was important for determining performance on the CRT-2 but not for the CRT. Implications of these findings and interpretations are discussed before suggestions for further research.

Keywords: Cognitive reflection test, dual-process theory, response inhibition, interference control, Stop-Signal Task