Children who are taught language with DVDS actually did worse than those who did not receive this training. This is thought to be due to less parental interaction.
(Mar. 6, 2010) — Among 12- to 24-month old children who view educational baby videos, there does not appear to be evidence that overall general language learning improves or that words featured in the programming are learned, according to a report posted online that will appear in the May print issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.
When additional tests were conducted after six weeks, there was no evidence children learned the words specifically highlighted in the DVDs, and watching the DVDs was unrelated to measures of general language learning. However, children whose parents reported that they began watching infant DVDs at an early age scored lower on a test of vocabulary knowledge.
The association between early DVD viewing and delays in language development could have several explanations, the authors note: "Parents who are concerned about their children's poor language abilities may use baby DVDs to try to teach their children, parents who use baby DVDs early may be less likely to engage in behaviors that promote language development or early viewing of baby DVDs may actually impair language development," they write.
Infants Do Not Appear to Learn Words from Educational DVDs