Young children who spend more time on screen-based activities and less time talking with adults tend to have weaker language skills, according to a recent study from the University of Tartu. The findings highlight that daily interaction – rather than screen limits alone – plays a key role in early language development.

The result may seem intuitive, yet the data reveal a more nuanced pattern. Children growing up in families where conversation is frequent show stronger language abilities, even when parents themselves use screens regularly. This suggests that it is not only about reducing screen time, but also about what replaces it.

This issue is becoming increasingly relevant, as previous studies have shown that most children aged two to five already exceed the widely recommended limit of one hour of screen time per day. Early language skills, in turn, are closely tied to later academic success, social development, and overall wellbeing, making everyday home environments a critical factor in shaping long-term outcomes.

The study analysed data from 448 Estonian children aged 30 to 48 months. The researchers examined associations between children’s and parents’ screen use, time spent in child-adult face-to-face conversations, and early language skills. Language skills were assessed using a standardised parental questionnaire measuring vocabulary, grammar, and communication complexity.

Results showed a consistent pattern: higher screen time was associated with lower language scores, whereas greater child-adult conversational engagement was associated with higher language outcomes. These associations remained significant even when both factors were included in the same model. The leading author of the study, Research Fellow in Developmental Psychology Jaan Tulviste noted that screen use and face-to-face conversation represent related but distinct correlates of early language development.

To better understand family dynamics, the researchers identified three typical behavioural profiles. In “Screen-Saturated, Somewhat Talkative Families,” both parents and children used screens frequently and children showed lower language scores. In “Low-Screen, Quiet Families,” screen use was limited but conversation was also sparse – and language outcomes were not better. The strongest results appeared in “Parent-Screen, Talk-Rich Families,” where children experienced frequent face-to-face conversations, alongside moderate parental screen use.

This suggests that simply cutting screen time may not be enough. “Low screen exposure alone was not linked to stronger language skills unless it was paired with active child-adult conversation,” Tulviste emphasised.

The researchers point out that the study is based on parent-reported data and captures associations, not causality. This means that it cannot establish cause and effect. It remains possible that children with weaker language skills are more drawn to screens, rather than screen use directly leading to poorer outcomes.

Nevertheless, the findings suggest that focusing solely on reducing screen time may be insufficient. What appears to matter more is whether screen use is accompanied by, or replaced with, opportunities for meaningful interaction. Activities such as talking, reading, and shared play provide important language input in early childhood. As Tulviste explained: “Children benefit most from sustained, back-and-forth interaction with adults.”

The study “High screen time and low child-adult talk associated with poorer language development in early childhood” was published in Frontiers in Developmental Psychology.