This article aims to present the results of the research in which the influence of arousal on
performing easy and difficult tasks was analyzed. For this purpose, Yerkes-Dodson law was
used. There was an assumption that performance increases with physiological or mental
arousal but when levels of arousal become too high, performance decreases. The subjects from
the experimental group listened to music before they were given an assignment. The subjects
from the control group were assigned to do their task without any arousal. The preliminary
results partially meet expectations. The results from the experimental group are higher in both
difficult and easy tasks than in the control group. However, because the preliminary research
was conducted among a small sample of 24 individuals, it is advisable to conduct further
research on a larger number of respondents.