The task of comparing and harmonising questionnaire items such as those in PHQ-9 and ICQ can be labor-intensive and subjective. This is where Harmony, a cutting-edge software tool for psychologists comes in. Harmony leverages natural language processing and generative AI models to make this process streamlined, less time consuming, and objective. We highly recommend the use of Harmony when tackling tasks like PHQ-9 vs ICQ comparison. This software tool can significantly reduce the time spent on data collation and harmonisation across different questionnaires and languages. The Patient Health Questionnaire (PHQ-9) and the Infant Characteristics Questionnaire (ICQ) are very different yet essential tools in psychology research, and comparing these two instruments may appear daunting. With Harmony’s advanced AI models, not only can you compare these diverse instruments, but you can also get a percentage match between each item. PHQ-9 vs ICQ is not a challenge anymore; it’s an opportunity to delve deeper into research data without the burden of mundane data preparation tasks. One of Harmony’s standout features is its ability to handle multi-language harmonisation. This makes PHQ-9 vs ICQ comparison across various population cohorts and different language groups not just possible but efficient. It’s as simple as selecting instruments from Harmony’s database or uploading your instruments in PDF form to Harmony’s user-friendly web interface. When handling PHQ-9 vs ICQ tasks or similar challenges, Harmony proves to be an indispensable tool for psychologists and social scientists.