{Reference Type}: Journal Article {Title}: Exploring The Impact of Acceptance and Commitment Based Cultural Humility Training on Standardized Patient Interactions: Revisiting the Measurement Process. {Author}: Assemi K;Lombardero A;West DM;Smith G;Li I;Houmanfar RA;Jacobs NN; {Journal}: J Clin Psychol Med Settings {Volume}: 0 {Issue}: 0 {Year}: 2024 Jul 9 {Factor}: 1.977 {DOI}: 10.1007/s10880-024-10026-4 {Abstract}: Recent findings in health sciences and medical education highlight the importance of training healthcare professionals to interact with their patients in a culturally humble manner (Nadal et al., in Journal of Counseling and Development 92: 57-66, 2014; Pascoe & Smart Richman, in Psychological Bulletin 135: 531, 2009; Sirois & Burg, in Behavior Modification 27: 83-102, 2003; Williams & Mohammed, in Journal of Behavioral Medicine 32: 20-47, 2009). An important piece in the progression of our ability to address training challenges is the assessment of cultural humility. As an extension of previous research (Lombardero et al., in Journal of Clinical Psychology in Medical Settings, 30: 261-273, 2023), this study implemented an evidence-based cultural humility intervention (based on Acceptance and Commitment Training) to improve medical students' interactions with standardized patients (SPs) which was assessed via direct behavioral observation. Specifically, the observational measurement system was focused on culturally humble responses to patients reporting microaggressions to the medical professional. A pre-post comparison of the results demonstrated statistically significant improvements pertaining to participants' culturally humble responses to SPs' reports of microaggressions for one of the measurement scales used (i.e., ARISE), but not the other (i.e., Responsiveness to Racial Challenges Scale). Further analyses, on the bottom quartile of performers, were conducted to assess a possible ceiling effect of the scale that did not demonstrate significant change. These results and implications for future research will be discussed.