Submitted on: 31 January 2014.
Revised on: 08 April 2014.
Accepted on: 02 June 2014.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
Submitted on: 06 January 2009.
Revised on: 29 April 2009.
Accepted on: 18 June 2009.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
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Submitted on: 07 March 2021.
Revised on: 16 May 2021.
Accepted on: 15 June 2021.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
Submitted on: 09 March 1999.
Revised on: 06 July 1999.
Accepted on: 19 July 1999.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
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Submitted on: 31 August 2009.
Revised on: 18 October 2009.
Accepted on: 29 November 2009.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH
Submitted on: 22 September 2016.
Revised on: 10 November 2016.
Accepted on: 14 December 2016.
___________________JOURNAL OF INTELLECTUAL DISABILITY RESEARCH