When undertaking psychology research, comparing and harmonising different questionnaires such as the Strengths and Difficulties Questionnaire (SDQ) and the Dutch Eating Behaviour Questionnaire (DEBQ) can be a complex process. However, the innovative harmony tool presents a solution to this difficulty. In the quest to explore the comparison between SDQ vs DEBQ, Harmony harnesses the power of natural language processing and generative AI models to make the process simplistic, efficient, and objective. The harmonisation process previously entailed the time-consuming task of manually going through long PDFs of questionnaires and dropping questions into Excel. With Harmony, practitioners can now drag and drop these instruments directly into Harmony’s web interface, even in different languages. This aids researchers in repeating the same longitudinal analysis across a number of studies, thereby testing the consistency of results hypothesis in the SDQ vs DEBQ comparison. In a quest to make full use of cohort and longitudinal studies, Harmony provides an easy and efficient way of comparing items in multiple languages while maintaining accuracy. So, whether you are looking to explore SDQ vs DEBQ or any other instruments against each other, Harmony is the go-to tool. It presents an ideal opportunity to foster better understanding, knowledge, and advancements in the field of Psychology.