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Submitted on: 18 May 2000.
Revised on: 14 July 2000.
Accepted on: 03 September 2000.
___________________BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY
Submitted on: 15 May 2000.
Revised on: 14 July 2000.
Accepted on: 13 August 2000.
___________________BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY
Submitted on: 16 September 2005.
Revised on: 14 January 2006.
Accepted on: 21 February 2006.
___________________BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY
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Submitted on: 10 August 2009.
Revised on: 15 November 2009.
Accepted on: 28 December 2009.
___________________BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY
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