The Jefferson scale of attitudes toward interprofessional collaboration: Spanish validation and relationship with empathy and personality traits in medical residents.

No information is available on the validation of the Jefferson Scale of Attitudes Toward Interprofessional Collaboration in Spanish (JeffSATIC-S). Few studies have examined attitudes toward collaborative work among medical residents, and research focusing specifically on medical residents in Mexico is currently absent. We evaluated the validity and reliability of the JeffSATIC-S. We then examined attitudes toward interprofessional collaboration among medical residents and their associations with empathy, personality traits - including covert narcissism - and affective - cognitive dysregulation. All medical residents at a public tertiary care teaching hospital were invited to participate in the survey; 213 completed the anonymous online questionnaire (77% response rate). Exploratory factor and reliability analyses were performed. Partial Spearman's correlation coefficients (rs) were calculated, adjusting for sex, age, specialty, and year of residence. The factor structure resembled the original instrument. Cronbach's alpha was 0.90 for working relationships and 0.73 for accountability. Empathy was significantly and positively correlated with the two domains (working relationships: rs = 0.557; accountability: rs = 0.495; p < .001). In contrast, aggression - hostility (rs =  -0.212 and -0.241, respectively; p < .001) and affective - cognitive dysregulation (rs=-0.328 and -0.347, respectively; p <0.001) were significantly negatively correlated. Covert narcissism, impulsive sensation seeking, and neuroticism-anxiety were significantly and negatively linked to accountability, but not to working relationships. The JeffSATIC-S is valid and reliable. Individual factors influence teamwork attitudes in different ways: some affect both working relationships and accountability, whereas others affect only the latter. Medical educators should anticipate interpersonal variability when designing training to enhance attitudes toward interprofessional collaboration. At the organizational level, teamwork-supportive cultures and learning environments should benefit all learners while accommodating additional support when needed.