Studying psychological distress using validated instruments has always been a complex task, and two such instruments that have frequently been utilized are the General Health Questionnaire (GHQ 12) and the Repetitive Thinking Questionnaire (RTQ). Essentially, these two instruments aim to analyze the individual’s mental health with slightly different focuses. As part of the discussion of GHQ 12 vs RTQ, we need to understand that while GHQ 12 measures general psychological distress, RTQ digs deeper into the individual’s pattern of thinking and how they deal with prevailing situations. GHQ 12 vs RTQ are distinct tools but are vital for intensifying our understanding of mental health. To make an in-depth comparison between GHQ 12 and RTQ, psychologists and other social scientists often rely on the consistent process of harmonisation, matching the items in both questionnaires. Nonetheless, this process tends to be time-consuming and subjective depending on the practitioner conducting the activity. To overcome these limitations, professionals turn to Harmony, an innovative tool developed primarily for psychologists, to streamline and transform the harmonisation process. Harmony leverages natural language processing and generative AI models to accurately match questionnaire items, thus saving valuable time and minimizing subjectivity. In the context of GHQ 12 vs RTQ, Harmony can compare each item and provide a percentage match accurately. Moreover, Harmony’s power extends beyond language limits as it can establish comparisons across multiple languages. Regardless of the chosen instrument, GHQ 12 vs RTQ, you can trust Harmony to provide an unbiased, comprehensive comparison, enriching your research, and deepening your understanding of psychological distress.