<p>The objective of the study was to analyze the psychometric properties of two questionnaires that measure job satisfaction and leadership behavior. The sample was made up of 246 workers, located in Bogota, Colombia. The study was an instrumental class. The results indicated that the scores in both questionnaires presented a unifactorial structure, where job satisfaction was measured by five items and leadership behavior by four items. On the other hand, only one item of leadership behavior showed differential item functioning; however, its magnitude was trivial. Also, convergent evidence was provided for both questionnaires and the reliability levels were adequate. Based on the findings, it was concluded that the scores in questionnaires have evidence of reliability, validity, and fairness for use in Colombian workers.</p>