Automatic Scoring of the Cognitive Reflection Test R package reflectR version 2.1.4 Automatic coding of open-ended responses to the Cognitive Reflection Test (CRT), a widely used class of tests in cognitive science and psychology that assess the tendency to override an initial intuitive (but incorrect) answer and engage in reflection to reach a correct solution. The package standardizes CRT response coding across datasets in cognitive psychology, decision-making, and related fields. Automated coding reduces manual effort and improves reproducibility by limiting variability from subjective interpretation of open-ended responses. The package supports automatic coding and machine scoring for the original English-language CRT (Frederick, 2005) <doi:10.1257/089533005775196732>, CRT4 and CRT7 (Toplak et al., 2014) <doi:10.1080/13546783.2013.844729>, CRT-long (Primi et al., 2016) <doi:10.1002/bdm.1883>, and CRT-2 (Thomson & Oppenheimer, 2016) <doi:10.1017/s1930297500007622>. Software Imports: stringr Suggests: spelling Giuseppe Corbelli <giuseppe.corbelli@uninettunouniversity.net> Comprehensive R Archive Network (CRAN) Giuseppe Corbelli [aut, cre] (ORCID: <https://orcid.org/0000-0002-2864-3548>) GPL-3 2025-08-27 application/tgz https://CRAN.R-project.org/package=reflectR doi:10.32614/CRAN.package.reflectR en-US