title: A randomized study of iterative hypothesis testing in undergraduate psychiatric education.
abstract: OBJECTIVE
  Iterative hypothesis testing (IHT) or related strategies of diagnostic decision making have been taught in many curricula for medical students but not in psychiatry. We therefore asked whether the addition of training in IHT may add to the quality of the psychiatry course.
  
  
  METHODS
  Seventy-two medical students were randomized to four weeks problem-based learning or to IHT. Knowledge and skills of the students were tested using a multiple choice exam and simulated patients.
  
  
  RESULTS
  Iterative hypothesis testing-trained students recognized more diagnostic items and more often identified comorbid psychiatric disorders and acute suicidal tendencies. Acquisition of general psychiatric knowledge and global satisfaction with the course were similar in both groups.
  
  
  CONCLUSIONS
  We conclude that teaching IHT to medical students may enhance their clinical ability to recognize complex disease patterns. Further studies are required concerning the enhancement of clinical skills in the psychiatric specialty.
authors.affiliation: Department for Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany. kahl.kai@mh-hannover.de
authors.forename: Kai G
authors.initials: KG
authors.lastname: Kahl
authors.forename: C
authors.initials: C
authors.lastname: Alte
authors.forename: V
authors.initials: V
authors.lastname: Sipos
authors.forename: A
authors.initials: A
authors.lastname: Kordon
authors.forename: F
authors.initials: F
authors.lastname: Hohagen
authors.forename: U
authors.initials: U
authors.lastname: Schweiger
mesh_terms: D000328:Adult; D002983:Clinical Competence; D003937:Diagnosis, Differential; D004504:Education, Medical, Undergraduate; D005260:Female; D006801:Humans; D051188:Knowledge Bases; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis*; D016544:Patient Simulation; D010549:Personal Satisfaction; D018794:Problem-Based Learning; D011570:Psychiatry / Q000193:education*; D013337:Students, Medical; D055815:Young Adult