title: Categorical programs for remedial and handicapped students: issues of validity.
authors.forename: J R
authors.initials: JR
authors.lastname: Jenkins
authors.forename: C G
authors.initials: CG
authors.lastname: Pious
authors.forename: D L
authors.initials: DL
authors.lastname: Peterson
mesh_terms: D000124:Achievement; D002648:Child; D006233:Persons with Disabilities / Q000193:education*; D004519:Education, Special / Q000379:methods*; D006801:Humans; D007859:Learning Disabilities / Q000534:rehabilitation*; D011057:Politics; D011640:Public Policy; D012073:Remedial Teaching / Q000379:methods*; D014481:United States