The purpose of this study is to investigate the mediating effect of negative problem orientation in the association between intolerance uncertainty and worry.

Participants who were 531 undergraduate students in Chungbuk were administered Intolerance Uncertainty Scale (IUS), Negative Problem Orientation (NPO; SPSI-R), Penn State Worry Questionnaire (PSWQ).

The results are as follows. Intolerance of uncertainty had statistically significant positive correlation with worry. Negative problem orientation had a partial mediating effect in the association between intolerance uncertainty and worry.

This result suggested the importance of intolerance of uncertainty and negative problem orientation in psychological approach to university students who have difficulty in worry.