This article explores the role of translation and translators within the process of test adaptation. With similarities to the linguistic validation process in clinical research, test adaptation is a complex multistep and iterative process in which linguistic and cultural nuances are an essential aspect. In the context of mental health tests, the impact on individuals can be significant, with far-reaching consequences across various life domains. In this specialised field, translators play a crucial role, contributing their unique expertise and insights on language and culture to help shape the test adaptation. Medical Writing. 2024;33(1):38–42. https://doi.org/10.56012/jfuz3231