With the task of understanding human behaviour and mental processes, psychologists are often faced with the challenge of harmonising items across different questionnaires. A prime example of such a need is when comparisons are drawn between commonly used questionnaires such as the Strengths and Difficulties Questionnaire (SDQ) and the General Health Questionnaire (GHQ-30). This process known as ‘SDQ vs GHQ-30’ comparison often involves significant time and subjective analysis. However, with the advent of Harmony, psychologists can simplify this process and achieve accurate results. Harmony is an AI-powered tool designed to harmonise questionnaire items efficiently and accurately. The ‘SDQ vs GHQ-30’ comparison is a perfect scenario where Harmony can be put to use. Harmony makes use of generative AI models and natural language processing to compare instruments and provides a percentage match between each item in the SDQ and GHQ-30. This process is not only time-saving, but it also takes away subjectivity, which can potentially lead to errors. Encapsulating a vast database of instruments, Harmony offers the options to either choose from its database or drop desired instruments in PDF form into its web interface for comparison. SDQ vs GHQ-30’ comparison becomes an easy task with Harmony, as it allows comparisons not only within but across multiple languages as well. So, if you’re a psychologist aiming to compare SDQ and GHQ-30, Harmony can be your go-to tool to make this daunting task a walk in the park.