Are personality tests accurate? How were they developed, how reliable is the science behind them, and which are most respected? Most importantly: which developers of personality tests were sexy MFers and which of them wrote erotic fiction about old men? Follow along to discover the strange history behind personality tests. ~ Join the MFFI community and vote on episode topics via DISCORD ~ In this episode: WW1 and Shell Shock (Post Traumatic Stress Disorder) The Robert Sessions Woodworth Personal Data Sheet (WPDS) Carl Jung's Psychological Types Katherine Cook Briggs Isabel Briggs Meyers The Meyers-Briggs Type Indicator (MBTI) The 8 Functions The 16 Types The Forer (Barnum) Effect CPP (Formerly Consulting Psychologists Press) ENTJ, The CEO Type Objective vs Projective Tests Hermann Rorschach, Sexy Badass Psychodiagnostik Pareidolia The Rorschach Test Ink Blot Interpretation (Klecksography) Gobolinks The Five Factor Model (FFM, or the Big 5) Enneagram Type A and Type B The DISC Model ~ Join the Midnight Masses! Become an Insomniac by dropping a review, adding us on social media, and contacting us with episode ideas. And we now have Midnight Merch! Show your Insomniac pride and pick up a tee shirt or coffee mug to spread the word! Midnight Merch ~ Leave an Audio Message! ~ Instagram ~ Podcast Website ~ Episode Transcript ~ KNOWLEDGE IS POWER, AND SLEEP IS OVERRATED ~