PHQ-9 vs SPPC: A Comparative Analysis Analyzing and comparing psychological instruments such as the Patient Health Questionnaire 9 (PHQ-9) and the Self-Perception Profile for Children (SPPC) is critical in correlating depression and self-perception in adolescents. While the PHQ-9 assesses depression severity, SPPC depicts the self-esteem level of a child. Researchers, psychologists and social scientists face the daunting task of item harmonisation within these tools - a process simplified by Harmony. Harmony, a tool powered by natural language processing and generative AI models, simplifies the tedious process of comparison between PHQ-9 and SPPC. Harmony employs large language models that offer a percentage match between each item in PHQ-9 and SPPC. The tool comes with a feature-rich database of instruments, enabling users to select from existing resources or upload their own in PDF format for comparison. As PHQ-9 and SPPC differ in terms of format and target indicators, using Harmony can significantly streamline the process. This provides immediate benefits in terms of time efficiency and improved accuracy in the PHQ-9 vs SPPC comparison process. In comparing PHQ-9 vs SPPC, Harmony’s multilingual capabilities provide a global scope. Its capabilities allow for cross-cultural studies and comparative assessments between different regions. By employing the Harmony tool in your study, you gain an essential resource that elevates the gravitas and precision of your PHQ-9 vs SPPC comparison exercise. So let Harmony simplify your harmonisation process and render a more accurate and detailed comparison of these crucial psychological assessment tools.