Behavior states and a half-full glass: a response to Mudford, Hogg, and Roberts.
Arthur
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Special Education Centre, The University of Newcastle, New South Wales, Australia. scmda@cc.newcastle.edu.au
D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis / Q000523:psychology*; D015588:Observer Variation; D015203:Reproducibility of Results; D014743:Videotape Recording