Abstract: Three factors that have been considered to influence mathematics learning outcomes are anxiety, self-efficacy and positive attitudes. Those have correlation each other. The analysis between the three factors is usually carried out using the pearson correlation concept where the data used is the crisp data. The fuzzy correlation is an attempt to provide an alternative in analyzing the correlation between two variables and the data used is fuzzy data. The data was collected from 1063 respondents through fuzzy instruments. The advantage of this instrument is that crisp and fuzzy data can be obtained immediately. Data analysis is done using pearson and fuzzy correlation. The results reveal several facts, those are: fuzzy data provides a more flexible and real conception, anxiety with self-efficacy has a negative correlation at a low level, anxiety with a positive attitude of students have a negative correlation at a low level, self-efficacy with a positive attitude has a moderate positive correlation, fuzzy correlation coefficients in the form of fuzzy interval numbers provide an advantage in decision making.