Submitted on: 25 September 2014.
Revised on: 08 December 2014.
Accepted on: 28 January 2015.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
Submitted on: 25 September 2018.
Revised on: 15 October 2018.
Accepted on: 06 December 2018.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
Submitted on: 20 January 2000.
Revised on: 08 May 2000.
Accepted on: 27 May 2000.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
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