Pour une pédagogie renouvelée Enseignement efficace ou explicite Zig Engelmann Daniel Willingham - Daniel Willingham: Science and Education Blog Coverage from NPR made it sound like Hart & Risley had been debunked, with the headline “Let’s stop talking about the 30 million word gap.”But the Sperry report doesn’t really upend Hart & Risley.First, Sperry et al. claim that the Hart & Risley finding has never been replicated. I am not sure what Sperry et al. mean by “replicate,” because the conceptual idea that socioeconomic status and volume of caregiver→child speech has been replicated. (The following list is not offered as complete—I stopped looking after I found five.)Gilkerson et al (2017)Hoff (2003)Hoff-Ginsberg (1998)Huttenlocher et al (2010)Rowe (2008)None of these is an exact replication---they have variations in methods, population, and analyses. What is the role of a scientist in these difficult application issues? For better or worse, I have come to what seems the obvious resolution: give people the fullest information you can and let them decide.
Webs of Substance | "The reasoners are like spiders who make cobwebs out of their own substance" Francis Bacon. This blog is about educational research. The quote is appropriate. Views are my own and do not represent any organisation. Follow @websofsubsta barrynsmith79's Blog | "Everything's already been said, but since nobody was listening, we have to start again." Gide