Which guideline for deciding on the number of MDS dimensions suggests plotting stress versus dimensionality?
A)a priori knowledge
B)interpretability of the spatial map
C)ease of use
D)elbow criterion

Question

Quizplus · Accepted Answer

The elbow criterion is specifically used for deciding on the number of MDS dimensions by plotting stress (a measure of how well the distance matrix is represented in the spatial map) versus dimensionality. The point where the plot starts to level off or plateau is considered the optimal number of dimensions to use.

Which Guideline for Deciding on the Number of MDS Dimensions