Depicting an accurate comparison between the Strengths and Difficulties Questionnaire (SDQ) and History & Aetiology Schedule (HAS) can be an arduous task, given their varying focus areas and the distinct question sets they each encompass. SDQ predominantly aims at exploring behavioural aspects in a child while HAS largely dives into a range of topics such as medical history, life events, and current living conditions. However, the dynamic comparison in ‘SDQ vs HAS’ can be efficiently tackled using Harmony, a proficient tool equipped with the power of natural language processing and generative AI models. Harmony simplifies the ‘SDQ vs HAS’ comparison by calculating a percentage match between each item in SDQ and HAS, thus easing the process of harmonisation tremendously. It not only detects similarities within different questionnaires but also recognises the corresponding elements across different languages. This software tool bears immense potential for psychologists and social scientists, saving time without compromising on the accuracy of data. You can either pick pre-existing instruments from Harmony’s database or feed in your own research tools in the form of PDF files, as per your convenience. In the era of extensive cohort and longitudinal studies, the necessity for sturdy software like Harmony becomes prominent, making the ‘SDQ vs HAS’ comparison a less daunting task. The possibility of comparing and contrasting questionnaires not just within but also across different studies assists the researchers in gauging the consistency or inconsistency of results over diverse social situations. Exploit this high-tech tool and venture into a smooth, systematic comparison between SDQ and HAS. Visit https://harmonydata.ac.uk/app to learn more or get started.