Öz
The aim of this study is to adapt the preservice teacher self-efficacy for writing inventory to Turkish and to examine the relationship between preservice primary school teachers' beliefs about writing and writing success. The study was carried out in two stages. At the first stage, scale adaptation steps were followed; data were collected from 424 preservice primary school teachers. The second stage of the study was carried out in accordance with the relational survey model. Data were collected from 364 participants in order to determine the relationship between preservice primary school teachers' beliefs about writing and their writing success. In addition, free writing activity was carried out for the preservice teachers and their texts were scored with the help of 6+1 analytical writing and evaluation rubric. As a result of the analysis, the structural compatibility of the scales in the inventory was checked and it was seen that the scales could provide valid and reliable measurements. In addition, it was determined that there is a positive and significant relationship between pre-service teachers' self-efficacy for writing, self-efficacy for writing instruction, and self-efficacy for teaching writing elements. However, it was concluded that the relevant variables were significant predictors of writing success.