Abstract
The aim of this research was to analyze the stability of Multidimensional Scaling (MDS). The investigations on this topic include studies related to the assumptions of linearity and monotonicity and to the validity and reliability of MDS procedures. Centered in this last topic, a test of the reliability of MDS procedure was carried out. We employed a set of complex stimuli: 21 sentences related to environmental field. 40 subjects made similarity judgements about both pairs “sentence A — sentence B” and “sentence B — sentence A”, so obtaining one square matrix per subject. Each of these matrices was broken down into two triangular matrices that were scaled separately by INDSCAL. The coordinates of stimuli in both MDS solutions were correlated. The results show a significant correlation between the two solutions.
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Correa, AD., Díaz, J., Suárez, E. et al. Multidimensional scaling reliability in similarity judgments about environmental sentences. Qual Quant 27, 201–209 (1993). https://doi.org/10.1007/BF01102733
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DOI: https://doi.org/10.1007/BF01102733