Although prior research clearly shows that toddlers have difficulty learning from video, the basis for their difficulty is unknown. In the 2 current experiments, the effect of social feedback on 2-year-olds' use of information from video was assessed. Children who were told "face to face" where to find a hidden toy typically found it, but children who were given the same information by a person on video did not. Children who engaged in a 5-min contingent interaction with a person (including social cues and personal references) through closed-circuit video before the hiding task used information provided to find the toy. These findings have important implications for educational television and use of video stimuli in laboratory-based research with young children.

Learning to use symbols is a challenge for young children even when the symbol in question (e.g., a live video image) is iconic and seems transparent to adults. This research examined the effect of experience on children's use of video-presented information. Two-year-old children saw themselves "live" on their family television for 2 weeks and then participated in an object-retrieval task. The children reliably used a live video presentation of an adult hiding a toy in an adjoining room to find the toy. Most also transferred what they learned to a task involving another symbol (pictures) that typically is very difficult for this age group. The results reveal flexibility in 2-year-olds' symbol use that follows from successful representation of a symbolic relation.

Young preschoolers rapidly acquire new information from social partners but do not learn efficiently from people on video. We trained parents to use Whitehurst's dialogic reading questioning techniques while watching educational television with their children. Eighty-one parents coviewed storybook videos with their 3-year-old children in 1 of 4 conditions: dialogic questioning (pause, ask questions, and encourage children to tell parts of the story), directed attention (pause and comment but do not ask questions), dialogic actress (show the videos with dialogic questioning by an on-screen actress embedded in them), or no intervention (show the videos as usual). After 4 weeks, children in the dialogic questioning group scored higher than children in the directed attention and no-intervention groups on story comprehension and story vocabulary measures. Scores from the dialogic actress group fell in between. On a standardized measure of expressive vocabulary, children in the 2 parent-interaction groups exhibited significant improvement over their pretest scores. Results indicate that parent-led questioning enhances children's learning from video stories at age 3 and that a video incorporating an on-screen dialogic questioner may also be effective. Mechanisms behind the effect of dialogic reading-style interventions are discussed.

In recent years, parents in the United States and worldwide have purchased enormous numbers of videos and DVDs designed and marketed for infants, many assuming that their children would benefit from watching them. We examined how many new words 12- to 18-month-old children learned from viewing a popular DVD several times a week for 4 weeks at home. The most important result was that children who viewed the DVD did not learn any more words from their monthlong exposure to it than did a control group. The highest level of learning occurred in a no-video condition in which parents tried to teach their children the same target words during everyday activities. Another important result was that parents who liked the DVD tended to overestimate how much their children had learned from it. We conclude that infants learn relatively little from infant media and that their parents sometimes overestimate what they do learn.

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