#MDS basics
This post focuses on MDS (Also sometimes called smallest space analysis
(Guttman, 1968) or multidimensional similarity structure analysis (Borg
& Lingoes, 1987)) as exploratory tool and a large amount of the information is lifted from Borg and Gronen (2005) which I really recommend for further readings.
Exploratory MDS might seem at first glance like tea-leaf reading, but over the years several rules have been developed that aid in determining structure from the MDS plots.