Development and validation of a mindset measurement scale for written expression

The aim of this article is to create and validate an implicit beliefs (mindset) scale in French. We have adopted a multidimensional approach, seeking to assess both growth and fixed mindset, but also the hypothesis of a threshold dimension, in which mindset become fixed beyond a certain point. The scale focuses on a specific domain: written expression. The study was carried out on three samples of French-speaking students, one for the exploratory analysis and two for the confirmatory analyses. Additional measures were also taken to support validity analyses, such as achievement goals and self-handicapping. Results showed satisfactory indicators, despite a fixed dimension with less robust markers than the growth dimension. The developed scale will be valuable for assessing the link between implicit beliefs, academic strategies and academic success in French students, in different fields.