Share via Share via... Twitter LinkedIn Facebook Pinterest Telegram WhatsApp Yammer RedditRecent ChangesSend via e-MailPrintPermalink × This is an old revision of the document! Latent traits and items Latent traits and items Latent traits and items latent trait, difficulty, specificity distrimination, 1 pl model rasch model, 2 pl model, 3 pl model, guessing ut, video item scale latent trait difficulty specificity distrimination 1 pl model rasch model 2 pl model 3 pl model guessing ut video