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In defence of multidimensional scaling for the analysis of sexual offence behaviour: cautionary notes regarding analysis and interpretation

机译：捍卫多维尺度分析性犯罪行为：有关分析和解释的注意事项

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摘要

Multidimensional scaling (MDS) has become a popular form of statistical analysis in the field of psychology and law. A recent paper in this journal by Sturidsson and colleagues (12, 221-230, 2006) used MDS to replicate an earlier study of sexual offence behaviour by Canter and Heritage (Journal of Forensic Psychiatry, 1, 185-212, 1990). They concluded that the model was not replicable and cast grave doubts on the applicability of MDS for the analysis of sexual offences. In this paper I argue that neither conclusion is correct. Initial difficulties in interpretation of the MDS results were clearly due to errors in calculation that should have been recognised. Indeed, a frequency analysis of Sturidsson and colleagues' variables indicated that their results were in fact remarkably congruent with those of Canter and Heritage. It is concluded that statistical software should not obviate the need for a working knowledge of the statistics being computed.
机译：多维标度（MDS）已成为心理学和法律领域中一种流行的统计分析形式。 Sturidsson及其同事在该期刊上最近发表的一篇论文（2006年12月22日至12月30日）使用MDS复制了Canter and Heritage对性犯罪行为的较早研究（Journal of Forensic Psychiatry，1，185-212，1990）。他们得出结论，该模型不可复制，并且对MDS在性犯罪分析中的适用性表示严重怀疑。在本文中，我认为这两个结论都不正确。解释MDS结果的最初困难显然是由于应识别的计算错误。的确，对斯特里森及其同事的变量进行的频率分析表明，他们的结果实际上与坎特和赫里特的结果完全一致。结论是，统计软件不应消除对正在计算的统计数据的实用知识的需求。

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