The mutual relations between the need for cognitive closure, the need for cognition, cognitive engagement and internal political efficacy were examined through structural equation modelling. The research used data from online questionnaires filled by 492 respondents. The results found significant relation between cognitive engagement and internal political efficancy (r=0.59; p<0.001) and with the need for cognition (r=0.38; p<0.001). Furthermore, it also discoverd a relation between internal political efficacy and need for cognition (r=0.39; p<0.001). The need for cognitive closure showed one significant weak relation with the variable of need for cognition (r=–0.19; p<0.001).