DeLoache et al.(2010) studied whether videos designed to promote vocabulary actually help babies learn words.They assigned one-year-olds randomly to one of three conditions.In one,several times each week the infant and parent watched a commercial DVD designed to increase the infant's vocabulary.In a second condition,parents were simply told the 25 words featured in the DVD and encouraged to help their infants master them.In a third,control condition,infants saw no videos and parents weren't told the words.After four weeks,experimenters tested infants' knowledge of the 25 words in the DVD.This is an example of a

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The Answer of DeLoache et al.(2010) studied whether videos designed to promote vocabulary actually help babies learn words.They assigned one-year-olds randomly to one of three conditions.In one,several times each week the infant and parent watched a commercial DVD designed to increase the infant's vocabulary.In a second condition,parents were simply told the 25 words featured in the DVD and encouraged to help their infants master them.In a third,control condition,infants saw no videos and parents weren't told the words.After four weeks,experimenters tested infants' knowledge of the 25 words in the DVD.This is an example of a

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