ECD does not make any of those test development tasks obsolete,
nor does ECD offer entirely novel ways to perform those tasks. ECD is
not used in place of traditional test development. ECD is used to enhance
traditional test development. As Mislevy and Haertel (2006) noted,
“each innovation is grounded in the same principles of evidentiary
reasoning that underlie the best assessments of the past” (p. 1).