Özet:

In this study, during the exercises in scenarios with four different levels of task difficulty (easy, medium, difficult, very difficult) designed depending on the number of aircraft and airspace structure in real-time simulations, mental workload was carried out on two different groups, who received simulation training and did not receive simulation training (experienced and inexperienced). A two-stage experimental process was carried out for multidimensional examination of mental workloads. In the first stage of the study, the reaction times of the participants before the simulation were evaluated over three different protocols using the FitLight Trainer system. No significant difference was observed between the experienced and inexperienced groups in terms of reaction times. In the second stage, these groups with homogeneous reaction times were compared with each other for the error numbers and performance scores of in real-time simulation scenarios. At the 90% confidence level, the experienced group made fewer mistakes. In addition, the different difficulty levels of the scenarios created a statistical difference in the error numbers. In easy-medium scenarios, students made statistically significantly fewer mistakes than in difficult-very difficult scenarios. Also, the changes of performance scores according to scenario difficulty levels were examined and it was revealed that there was a significant difference between performance scores (p-value=0,00 < 0,05). Students' performance scores were significantly higher in easy-medium scenarios compared to difficult-very difficult scenarios. According to the results of the study, it was seen that the error numbers and performance scores supported each other. It can be said that the difficulty levels of the scenarios have an effect on the cognitive workload (error numbers, performance scores).

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