Introduction. Currently, communication is an essential competence in medical training. CICAA is a scale conceived from a multidimensional perspective according to Kalamazoo's criteria, this is an instrument used to assess different communicational tasks in clinical interview. Subjects and methods. Two observers, one with a background in social sciences and another physician, independently analyzed clinical interviews of final year medicine students' of the Universidad of Antioquia, according CICAA scale. The raters agreement (Cohen's kappa), internal consistency of the scale (Cronbach's alpha) and reliability (intra-class correlation coefficient, ICC) were measured. Results and conclusions. In the results was displayed that women had a total score higher than men (p < 0. 05). Although differences were observed in the ratings given to each item among observers (Cohen's kappa < 0.20), the psychometric properties of the scale were appropriate (Cronbach's alpha > 0.7; ICC > 0. 7). As a fortress in the students communication, was identified the friendliness of students in the clinical interview.