Principal component analysis (PCA) is one of the most important and powerful methods in chemometrics as well as in a wealth of other areas. Running a PCA results in two main elements, the score plot and the loading plot; the score plot provides the location of the samples, and the loading plot indicates correlations among variables, the trends in…

The objective of this paper is to draw attention to four features that distinguish the pedagogy of patient interviewing from the teaching of other clinical skills: (a) students are not naive to the skill to be learned, (b) they encounter role models with a wide variability in interviewing styles, (c) clinical teachers are not usually specialists…