title: Item difficulty of the tactual performance test location score.
abstract: The item difficulty and discrimination index values for the Tactual Performance Test Location scores are presented. The difference between this and the previous item analysis of the Location score is that in this analysis the subjects' Location scores were used only if the subject correctly remembered the block.
authors.affiliation: MH Group/Mental Health, Department of Veterans Affairs, VA Long Beach Healthcare System, CA 90822, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: Charter
authors.forename: R L
authors.initials: RL
authors.lastname: Dutra
mesh_terms: D000328:Adult; D001925:Brain Damage, Chronic / Q000175:diagnosis / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall; D009949:Orientation; D011594:Psychometrics; D012016:Reference Values; D015203:Reproducibility of Results; D013236:Stereognosis; D014110:Touch