SDQ vs RAPI: A Brief Guide When conducting psychological and behavioural research, comparing unique diagnostic tools such as the Strengths and Difficulties Questionnaire (SDQ) and the Rutgers Alcohol Problem Index (RAPI) is critical for insight and understanding. These two instruments serve different research goals and populations; nevertheless, dissecting parallel themes in both could lend a richer understanding of behaviour trend overlaps. The SDQ vs RAPI comparison can be particularly daunting due to the voluminous nature of their content and the lexical disparities involved. Fortunately, Harmony, a cutting-edge software designed for psychologists and social scientists for harmonisation, is available to mitigate this task. With Harmony, the process of evaluating SDQ vs RAPI becomes significantly less cumbersome. The software boasts an integration of advanced natural language processing and generative artificial intelligence models, which makes productive comparison of questionnaire items viable, including those from the SDQ and RAPI. Harmony also supports multilingual comparison and provides an intuitive database of instruments that can be easily engaged with at https://harmonydata.ac.uk/app. It’s time to take full advantage of this modern technology in psychology research. With Harmony, diving into a thorough comparison of SDQ vs RAPI has never been easier. The tool offers an exceptionally user-friendly interface where researchers can drag and drop questionnaire items into the platform in various formats, such as PDF. By employing Harmony’s advanced abilities, it becomes possible to extend the findings in both SDQ and RAPI, thereby enabling a more efficient and robust comparison for behavioural research.