Plot Overall Test Score by Question and Correctness

Boxplot of test scores compared with question responses.

plotTestScoreByQuestion(mctd, concepts = unique(mctd$AnswerKey$Concept),
  facet_by_concept = FALSE)

Arguments

mctd	Existing mcTestAnalysis data object
concepts	Character vector containing concept groups to be plotted
facet_by_concept	Should plot be facetted by concept group?