..., and discriminant validity, this comment will focus on the need for future research to also address predictive validity, as studies linking infancy and early childhood to attachment in middle childhood appear to have been the focus in only 3 of the 67 papers reviewed by Gastelle and Kerns (2022) (i.e., Miller et al...

...Stein Erik Ulvund The low predictive validity of infant tests is discussed in light of some current issues in developmental psychology. The main issues considered are continuity-discontinuity in the development of early cognitive-competence, the problem of intellectual heterogeneity, and the issue...