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The term 30-million-word gap (often shortened to just word gap) was originally coined by Betty Hart and Todd R. Risley in their book Meaningful Differences in the Everyday Experience of Young American Children, [1] and subsequently reprinted in the article "The Early Catastrophe: The 30 Million Word Gap by Age 3". [2]
[6] [7] Some subsequent scholars have thrown doubt on Hart and Risley's findings, arguing that Hart and Risley's study was methodologically unsound and that the language disparity reported by Hart and Risley does not in fact exist and cannot be considered causal for the disparity of education outcomes. [8] [9] [10]
In 1998 he read Meaningful Differences in the Everyday Lives of Young American Children by Betty Hart, Ph.D., and Todd Risley, Ph.D. Based on data gathered through an intensive longitudinal study, Meaningful Differences revealed that the number of adult words spoken to children from birth to age three predicted almost all of the variance in the ...
Today's NYT Connections puzzle for Monday, January 13, 2025The New York Times
According to a 2023 study, the average time people spent socializing fell from 60 minutes per day in 2003 to just 20 minutes in 2020. ... "In modern life, we need more opportunities for meaningful ...
No, this isn't an article written for (or by) squirrels – humans can actually eat acorns under certain circumstances. The nuts stem from oak trees, and can actually elicit a mild, nutty flavor. ...
Todd Robert Risley (September 8, 1937 – November 2, 2007) was an American psychologist. He is credited with helping to create the field of applied behavior analysis , and has been described as a "pioneer" in this field.
One thing people quickly notice about Social Security is that change is virtually inevitable. The most notable change to Social Security benefits in 2025 should be good news. All current ...