Skip to main content

The "Debunking" of Hart & Risley and How We Use Science - Daniel Willingham--Science & Education

The "Debunking" of Hart & Risley and How We Use Science - Daniel Willingham--Science & Education: The recent kerfuffle concerning Hart & Risley (1995) and the 30 million word gap offers an object lesson in science, the interpretation of science, and the relation of science and policy.

Let’s start with the new science. Douglas Sperry and colleagues sought to replicate Hart & Risley, who reported the 30 million word gap—that’s the projected difference in total number of words directed to a child by caregivers when comparing children of parents on public assistance and children of parents in professional positions. �Sperry and his team claim not to find a statistically reliable difference among parents of different social classes.

Popular posts from this blog

(26) Post | LinkedIn

(26) Post | LinkedIn : ► Trump was first compromised by the Russians back in the 80s. In 1984, the Russian Mafia began to use Trump real estate to launder money and it continued for decades. In 1987, the Soviet ambassador to the United Nations, Yuri Dubinin, arranged for Trump and his then-wife, Ivana, to enjoy an all-expense-paid trip to Moscow to consider possible business prospects. Only seven weeks after his trip, Trump ran full-page ads in the Boston Globe, the NYT and WaPO calling for, in effect, the dismantling of the postwar Western foreign policy alliance. The whole Trump/Russian connection started out as laundering money for the Russian mob through Trump's real estate, but evolved into something far bigger. ► In 1984, David Bogatin — a Russian mobster, convicted gasoline bootlegger, and close ally of Semion Mogilevich, a major Russian mob boss — met with Trump in Trump Tower right after it opened. Bogatin bought five condos from Trump at that meeting. Those condos were...