are discrimination parameter in itr model items or individuals is discrimination parameter item or parameter what is discrimination parameter? which of the following is considered the discrimination parameter in the irt model can discrimination parameters be two-parameter can discrimination parameters be used as parameter is discrimination parameter an item parameter? what is discrimination parameter is discrimination parameter an item parameter discrimination parameter is considered as discrimination parameters are usually considered item parameters is discrimination parameter an item parameter what is discrimination parameter discrimination parameter is discrimination parameter item parameter are discrimination parameters item parameter are discrimination parameters an item parameter can discrimination parameter be used in the discrimination model? what is discrimination parameter is discrimination parameter an item parameter