This study aims to develop a measurement tool to measure the quality of using learning strategies. First, the quality of using learning strategies was described based on the literature. The 32 items in the 5-point Likert scale were then administered to 320 prospective teachers, and they were analysed with exploratory factor analysis using unweighted least squares method and promax rotation technique. The four-factor 15 items formed were applied to another study group of 203 prospective teachers. Of the models tested for the factorial structure of the scale in this data set using confirmatory factor analysis (CFA), the four-dimensional structure displayed perfect fit with the data. It was found that the Cronbach's Alpha coefficient calculated for the whole scale and for the sub-dimensions in the first sample rose and reached a good level of internal consistency and that the McDonald's omega coefficient calculated yielded coefficients close to these values. In this way, a valid and reliable measurement tool was developed to measure the quality of using learning strategies in this framework.