Adopt Big Five for public programs

Policy and institutions (schools, workforce development, licensing bodies, and public‑sector HR) should standardize on the Big Five trait framework rather than Myers‑Briggs or pop frameworks, because meta‑analytic evidence shows better predictive validity for outcomes like grades, job performance, and wellbeing. Standardizing measurement would improve targeting of interventions (e.g., conscientiousness training, tailored guidance) and reduce reliance on weak, commercially popular instruments. — If governments and employers shifted to evidence‑backed personality measures, education and labor policy could be better aligned to real predictors of success and reduce waste from ineffective psychometrics.