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While the 3D cluster view (3DCV) combines aspects of both the similarity matrix and the dendrograms by visualizing the similarity between cards and potential groupings of cards, there are some key differences between these analysis methods.
Both the 3DCV and the similarity matrix show the similarity between cards, however the 3DCV also shows similarity as a spatial relationship between each card, which the similarity matrix does not.
Both the 3DCV and the dendrograms show clusters of potential groupings based on hierarchical analysis, however the 3DCV shows the spatial relationships between these clusters, which the dendrograms do not.
The 3DCV provides a new perspective of card sort results by presenting these relationships in three-dimensional space.