The language that children are exposed to has long been thought to have some kind of influence upon their own lexico-semantic and grammatical development. But more importantly perhaps, the verbal interaction that children have with carers has often been thought to have a huge impact on the pace of a child's language development. A report, commissioned by the educational charity, The Sutton Trust suggests that the impact can be as much as one year's language development on a child by the time he or she is 5 years old. In other words, a child from a poor background - poor in terms of their family's income but poor too in terms of amount of contact time, reading time and time spent interacting verbally - could lag as far behind as a whole year compared to children of wealthier parents who spend more time reading to, talking with and generally interacting with their children.
The results might need a bit of unpicking, but there are some quite stark findings that the researchers, Jane Waldfogel and Elizabeth Washbrook, come up with:
Just under half (45%) of children from the poorest fifth of families were read to daily at age 3, compared with 8 in 10 (78%) of children from the richest fifth of families. Comparing children with the same family income, parental characteristics and home environments, those who were read to every day at age 3 had a vocabulary at age 5 nearly 2 months more advanced than those who were not read to every day.
Similarly, a child taken to the library on a monthly basis from ages 3 to 5 is two and a half months ahead of an equivalent child at age 5 who did not visit the library so frequently.
Regular bedtimes at 3 and 5 are associated with gains of two and a half months at age 5.
At the end of the summary of their findings, the researchers rate the factors that they have found as more or less responsible for contributing to the gap in test scores between children and decide that the most significant influence is in the category of "parenting and the home environment" (which includes reading to your child, the nature of the social interaction you have with your child etc.) while "material circumstances" (income, savings, pressure of bills etc.) is the second most significant factor.
The full report can be found here
, a summary here
and a BBC news story about it here
. For anyone interested in other studies into the role of interaction and the development of children's language, have a look here
at a 2009 blog post about gestures, here
for a Polly Toynbee article about Hart and Risley's influential research into American children's language development, and here
for a link to the Children of the Code site where Todd Risley is interviewed about his work