step 3.1. Product Solutions

Predicated on Samejima’s rated effect IRT model [22,25], making use of the limited maximum possibilities estimator (MMLE), we can get one to slope and you can four endurance (location) parameters for every item. Zero items try overlooked of the estimate processes. The new mountain parameter was a measure of the brand new discerning stamina from a product or service, additionally the place parameter tips brand new regularity away from an attitude or a personality. Continue reading →