Useful psychological testing resources on the web General American Psychological Association guidance on Testing and AssessmentBritish Psychological Society - Psychological Testing CentrePsyToolkitOffice for National Statistics Current Standard Occupational Classifications.Face Image Databases Personality and social psychology measures The Big Five Inventory (Berkeley Personality Lab)HEXACO Personality Inventory RevisedInternational Personality Item Pool Clinical and health APA Online Assessment MeasuresPsychology Tools (UK)Psychology Tools (USA)Autism Research Centre (University of Cambridge) This article was published on 2026-04-30