A 3-hour simulation session was held with a pretest and posttest study design. Prior to the training, trainees watched the New England Journal of Medicine procedural videos. Simulation stations for Arterial Line, Central venous line, Lumbar Puncture, and Intubation were arranged. The questionnaire was adapted from Michigan Standard Simulation Experience Scale and included 3 domains of simulation experience including knowledge, procedural skills, and quality of training. Questionnaire responses ranged as Very Poor, Poor, Average, Good, and Excellent which were respectively transformed into 1-5 for the analysis. The responses from pre- and post-simulation were compared using the sign test.