Validity
bookPart
Validity is a generic term that refers to the question of how well an instrument measures what it claims to measure. This chapter briefly reviews the main types of validity: internal validity and external validity. Content validity is the extent to which the D-score represents all facets of development. In contrast to “face validity,” which assesses whether the test appears valid to respondents, content validity is about what is measured. Construct validity is the extent to which the D-score behaves like the theory says the construct should behave. Discriminatory validity indicates the extent to which the D-score can distinguish children with non-normal development from children that are developing normally. Divergent validity is the extent to the D-score is uncorrelated with measures of a different construct. (C) 2021 van Buuren S and Eekhout I. Creative Commons, CC BY-NC-ND.
TNO Identifier
993347
ISBN
9781000805536
9781032106342
9781032106342
Publisher
CRC Press
Source title
Child Development with the D-score
Editor(s)
Buuren, S. van
Eekhout, I.
Eekhout, I.
Place of publication
Boca Raton
Pages
65-68