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Journal of Applied Behavior Analysis|January 1, 1991
Inducing variability in communicative gestures used by severely retarded individualsP C Duker, C van LentJournal of Mental Deficiency Research|March 1, 1981
Prevention of incorrect responding for establishing instruction following behavioursP C DukerAmerican Journal of Mental Deficiency|May 1, 1983
Determinants of diurnal bladder control with institutionalized mentally retarded individualsP C DukerResearch in Developmental Disabilities|October 30, 1999
The Verbal Behavior Assessment Scale (VerBAS): construct validity, reliability, and internal consistencyP C DukerJournal of Applied Behavior Analysis|January 1, 1984
Acquisition and cross-setting generalization of manual signs with severely retarded individualsP C Duker, H MorsinkJournal of Intellectual Disability Research : JIDR|August 1, 1996
Increasing on-task behaviour through interruption-promptingP C Duker, M SchaapveldJournal of Intellectual Disability Research : JIDR|April 1, 1992
Development of diurnal bladder control in severely and profoundly mentally handicapped residentsP C Duker, M DekkersJournal of Behavior Therapy and Experimental Psychiatry|September 1, 1993
The use of negative practice for the control of pica behaviorP C Duker, M NielenJournal of Autism and Developmental Disorders|September 1, 1989
Effects of redesigning the physical environment on self-stimulation and on-task behavior in three autistic-type developmentally disabled individualsP C Duker, E RasingResearch in Developmental Disabilities|April 21, 1998
The Motivation Assessment Scale: reliability and construct validity across three topographies of behaviorP C Duker, J SigafoosPageof 4