====== Latent traits and items  ======

[[https://youtu.be/iu_b8MWjhiU|Latent traits and items]]

{{ :research_methods:microlecture_6_9_6_1_latent_traits_and_items.pptx |Latent traits and items}}

{{tag>item scale latent_trait
difficulty
specificity_distrimination
1_pl_model_rasch_model
2_pl_model
3_pl_model
guessing}}
{{tag>research_methods:ut research_methods:video}}