The purpose of this study is to design a creativity assessment device that is valid and reliable and able to provide opportunities for students to evaluate their abilities. This research is development research using development methods with ADDIE stages. This study uses a quantitative descriptive approach. Non-test self-assessment worksheets are used in the creation of creativity tools. The validity of the data was assessed by the expert's team with assessment aspects covering material, construction, and language aspects. The Aiken equation with the coefficient V Aiken is used as a decision rule in determining the validity of the instrument. This study involved 5 expert teams and 72 building engineering vocational students in Surakarta as research respondents. The results showed that the self-assessment-based creativity assessment instrument was valid and reliable so it was suitable for use by vocational students. This study provides a significant contribution to educational assessment in vocational schools, especially in the aspect of creativity needed to support entrepreneurship. The existence of a valid and reliable self-assessment-based creativity assessment instrument allows students to better recognize and develop their creative abilities independently. This instrument also provides insight for teachers and institutions in designing teaching programs that are more in line with the needs of increasing creativity. The results of this study have the potential to direct educational policies that emphasize the development of creative and entrepreneurial skills in vocational schools, which can ultimately improve the quality of graduates so that they are ready to compete in the world of work and entrepreneurship. © 2025, Qubahan. All rights reserved.
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