摘要：The aim of this study is to develop a valid and reliable scale that can be used in determining preservice music teacher’s self-efficacy beliefs towards instrumental performance. The first step of this study is to get an expert view about items. After this process the scale was administrated 443 preservice music teachers and explanatory factor analysis was applied. According to EFA results, the scale was consisted of three sub-dimensions that are called “self-efficacy towards instrumental performance”, “negative emotions felt in instrumental practicing” and “modeling”. The cronbach alpha coefficients of this three sub dimension are found, 85 for the first factor, 82 for second factor and, 76 for third factor. The scale along with its three sub-dimensions are accounted for 52,5 percent of total variance. After EFA, DFA was applied for new data set that was consisted of 275 preservice teachers. According to DFA results, it is understood that the model showed great fit (x2 = 283.52, DF =148). After DFA, convergent validity was applied using “Self-efficacy beliefs toward instrumental performance scale developed by Girgin (2015). Correlation coefficient (r=65, p<0,01) shows that those two scales show high convergence each other. The last stage in the developmental process is test re-test analysis. For this analysis scale was administrated same group (n=68) 17 days apart. The correlation coefficient shows that the scale shows high consistency when it was administrated different time periods (r= 88, p<0,01).
