“…The field of early childhood intervention has a relatively short but rich history (Dunst, 1996;McLean, Sandall, & Smith, 2016;Meisels & Shonkoff, 2000). In the 50+ years since Hunt (1961) first noted that experiences early in a child's life could alter developmental outcomes, and later, that respon-Carl J. Dunst, Deborah W. Hamby, Linda L. Wilson, Marilyn Espe-Sherwindt, & Donna E. Nelson sive caregiving was an important factor in shaping those outcomes (Hunt, 1987), considerable advances have been made in terms of understanding which experiences under which conditions have which kinds of outcomes and benefits (e.g., Britto, Engle, & Super, 2013;Farrell et al, 2016;Odom & Wolery, 2003;Reichow, Boyd, Barton, & Odom, 2016).…”