Despite theoretical similarities of the Anxiety, Environmental and Reinforcement Sensitivity, there is a very small amount of research studying the relationship between different types of sensitivity. Therefore, the aim of this graduation thesis was to examine in more detail the interrelationship between mentioned sensitivity types. An exploratory factor analysis using the principal components method was performed on 50 items from three sensitivity questionnaires: BIS/BAS scales, Anxiety Sensitivity Index - 3 (ASI-3) and short version of the Highly Sensitive Person Scale (HSP-12). Research identified seven first-order factors (Unpleasant Arousal, Physical Concerns, Fear of Negative Outcomes, Reward Sensitivity, Drive, Fun Seeking and Aesthetic Sensitivity) and three second-order factors (Behavioral Inhibition System (BIS), Behavioral Activation System (BAS) and Pleasant Sensitivity (PS)). The factors Unpleasant Arousal, Physical Concerns and Fear of Negative Outcomes grouped together into the second-order factor of BIS. The factors Reward Sensitivity and Aesthetic Sensitivity grouped into the second-order factor of PS. The factors Drive and Fun Seeking grouped into the second-order factor of BAS. Seven first-order factors explain 51.6% of variance, while second-order factors explain 68% of variance of identified factors, which speaks of the importance of both the first and the second-order factors in explaining the variability observed in the sensitivity data.