how to extract factor scores for each observation how to calculate factor scores with irt calculate factor scores in irt how to extract factor scores in lsat how to extract factor scores for each observation in itr what is the factor for lsat how to extract factor scores for each observation how to extract factor score from lsat how to extract factor scores how to extract factor scores for each observation in anitr which function of iris generates latent trait scores? how to extract score how to extract factor scores in lsat how to extract ltm scores how to find the factor score for each observation in itr? how to extract factor scores in iris how to extract factor scores for each observation in IRT how does itrt extract trait score what is the ltm factor for lsat what is the ltm factor for lsat