PHQ-9 vs GCOS In the field of psychology and social sciences, comparing and matching items in different questionnaires is a critical process. Specifically, the measurement variability between PHQ-9 (Patient Health Questionnaire) and GCOS (General Causality Orientation Scale) has become a topic of interest for many researchers. The PHQ-9 is a self-administered diagnostic tool for mental disorders, while GCOS evaluates the motivation orientation of individuals in different scenarios. When comparing PHQ-9 vs GCOS, researchers aim to identify the alignment of questions related to mental health and motivation. Using Harmony, a software developed for psychologists and researchers, will simplify the task of comparing PHQ-9 vs GCOS. Harmony uses advanced natural language processing and generative AI models to harmonise questionnaire items, even in different languages. So when investigating PHQ-9 vs GCOS, Harmony is able to provide a percentage match between each item, thereby saving researchers hours of manual comparison and increasing the objectivity of comparison. The software also allows researchers to upload their own instruments, in addition to selecting from a pre-existing database. By using Harmony for PHQ-9 vs GCOS comparison, not only can users save significant time and effort, but they can also ensure the accuracy of their comparative analysis. In doing so, making full use of available data, testing consistencies of results across multiple studies, and addressing changing social conditions can be achieved with greater efficiency and precision. Harmony indeed offers a streamlined, innovative solution for psychologists and social scientists who are keen to explore the comparison between PHQ-9 and GCOS.