title: Evaluation of Radiology Teachers' Performance and Identification of the "Best Teachers" in a Residency Program: Mixed Methodology and Pilot Study of the MEDUC-RX32 Questionnaire.
abstract: Radiology teachers are well trained in their specialty; however, when working in academic institutions, faculty development and promotion through the education pathway tends to be based on their teaching knowledge and skills. The aim of this study is to assess psychometric properties of the Medicina Universidad Católica-Radiology 32 items (MEDUC-RX32), an instrument designed to evaluate the performance of postgraduate radiology teachers and to identify the best teachers.
  
  
  
  Mixed methodology was used, including qualitative and quantitative phases. The psychometric properties of the MEDUC-RX32 survey were performed by factor analysis (validity), Cronbach alpha coefficient, and G coefficient (reliability). The residents assessed their teachers and simultaneously voted for the "best teacher," which was used as a gold standard for the receiver operating characteristic curves construction comparing their votes with the global score.
  
  
  
  A total of 28 residents answered 164 surveys. The global score was 6.23 ± 0.8 (scale from 1 to 7). The factor analysis showed six domains of the resident's perception: (1) tutorial teaching, feedback, and independent learning; (2) communication and teamwork; (3) learning objectives; (4) respectful behavior; (5) radiological report; and (6) teaching and care support. The tutor's strengths were related with respectful behavior and teamwork. The instrument is highly reliable with a Cronbach alpha of 0.937 and a G coefficient of 0.831 (with a minimum of 8 residents). The MEDUC-RX32 instrument has a sensitivity of 91.7% and specificity of 83.3% to identify tutors as best teachers with at least one vote with an area under the receiver operating characteristic curve of 0.931 with a cutoff of 5.94.
  
  
  
  The MEDC-RX32 instrument is a multidimensional, valid, and highly reliable method to evaluate radiology teachers, identifying teachers with excellence in tutorial teaching in a postgraduate radiology program.
authors.affiliation: Department of Radiology, Pontificia Universidad Católica de Chile. Santiago, Chile.
authors.forename: Álvaro
authors.initials: Á
authors.lastname: Huete
authors.affiliation: Department of Internal Medicine, Hospital Sótero del Río. Santiago, Chile.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Julio
authors.affiliation: Department of Gastroenterology, Pontificia Universidad Católica de Chile, Marcoleta 367 (mailbox 114-D). Santiago, Chile.
authors.forename: Viviana
authors.initials: V
authors.lastname: Rojas
authors.affiliation: School of Public Health, Pontificia Universidad Católica de Chile. Santiago, Chile.
authors.forename: Cristián
authors.initials: C
authors.lastname: Herrera
authors.affiliation: School of Public Health, Pontificia Universidad Católica de Chile. Santiago, Chile.
authors.forename: Oslando
authors.initials: O
authors.lastname: Padilla
authors.affiliation: Department of Gastroenterology, Pontificia Universidad Católica de Chile, Marcoleta 367 (mailbox 114-D). Santiago, Chile.
authors.forename: Nancy
authors.initials: N
authors.lastname: Solís
authors.affiliation: Department of Gastroenterology, Pontificia Universidad Católica de Chile, Marcoleta 367 (mailbox 114-D). Santiago, Chile.
authors.forename: Margarita
authors.initials: M
authors.lastname: Pizarro
authors.affiliation: Department of Gastroenterology, Pontificia Universidad Católica de Chile, Marcoleta 367 (mailbox 114-D). Santiago, Chile.
authors.forename: Lorena
authors.initials: L
authors.lastname: Etcheberry
authors.affiliation: Department of Internal Medicine, Pontificia Universidad Católica de Chile. Santiago, Chile.
authors.forename: Alberto
authors.initials: A
authors.lastname: Sarfatis
authors.affiliation: Department of Internal Medicine, Pontificia Universidad Católica de Chile. Santiago, Chile.
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Pérez
authors.affiliation: Department of Internal Medicine, Pontificia Universidad Católica de Chile. Santiago, Chile.
authors.forename: Luis A
authors.initials: LA
authors.lastname: Díaz
authors.affiliation: Department of Anesthesiology, Pontificia Universidad Católica de Chile. Santiago, Chile.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Delfino
authors.affiliation: Department of Gastroenterology, Pontificia Universidad Católica de Chile, Marcoleta 367 (mailbox 114-D). Santiago, Chile.
authors.forename: Estrella
authors.initials: E
authors.lastname: Muñoz
authors.affiliation: Department of Gastroenterology, Pontificia Universidad Católica de Chile, Marcoleta 367 (mailbox 114-D). Santiago, Chile.
authors.forename: Horacio
authors.initials: H
authors.lastname: Rivera
authors.affiliation: Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada; Department of Medical Imaging, University of Toronto, Toronto, Canada.
authors.forename: Dimitri A
authors.initials: DA
authors.lastname: Parra
authors.affiliation: Center for Medical Education, Pontificia Universidad Católica de Chile. Santiago, Chile.
authors.forename: Marcela
authors.initials: M
authors.lastname: Bitran
authors.affiliation: Department of Gastroenterology, Pontificia Universidad Católica de Chile, Marcoleta 367 (mailbox 114-D). Santiago, Chile. Electronic address: a.riquelme.perez@gmail.com.
authors.forename: Arnoldo
authors.initials: A
authors.lastname: Riquelme
mesh_terms: D000328:Adult; D003142:Communication; D005260:Female; D000068156:Formative Feedback; D006801:Humans; D007396:Internship and Residency; D008297:Male; D010865:Pilot Projects; D011361:Professional Competence; D015397:Program Evaluation; D011594:Psychometrics; D011871:Radiology / Q000193:education*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D013663:Teaching
keywords: Medical education; feedback; postgraduate; teacher assessment