Research from Cardiff University and King’s College London reveals that traditional play with dolls fosters greater imaginative and social skills in children compared to play with digital devices. As concerns mount regarding screen time and its potential negative effects on child development, this study highlights the value of engaging with physical toys.
The Study’s Findings
The study involved a sample of 73 children aged between four and eight, who were randomly assigned to play with either dolls or tablets preloaded with video games. Over a six-week period, the children’s play behaviours were observed, and parents documented their interactions at home.
Lead researcher Dr Sarah Gerson noted that children who played with dolls demonstrated a deeper understanding of others’ emotions and beliefs. “Doll play seems to encourage children to engage in social interactions and provides opportunities for them to reflect on the feelings and intentions of others,” she explained. In contrast, children using tablets were reported to play more often in isolation.
The researchers found that children engaged in doll play exhibited significant enhancements in what is termed “false-belief reasoning.” This cognitive ability allows children to comprehend that others may hold beliefs different from their own, a fundamental aspect of social development.
Implications for Child Development
The implications of these findings are substantial. Doll play not only aids in developing social skills but also enhances emotional intelligence. Dr Gerson emphasised that imaginative play enables children to role-play various scenarios, which is crucial for practicing social skills and processing emotions in a safe context.

The study’s results add to the ongoing debate about the appropriate amount of screen time for young children. Recent statistics suggest that even infants as young as nine months in England are spending an alarming average of 41 minutes each day engaged with screens. This raises questions about the long-term effects of digital device usage on childhood development.
Research Integrity and Support
The research was funded by Mattel, the US toy manufacturer, which provided a diverse range of dolls for the study. A spokesperson from Cardiff University assured that despite this funding, the integrity of the research was maintained, with independent data collection and analysis.
The researchers were encouraged by the notable improvements in the children’s ability to engage in “internal state language,” which refers to the vocabulary used to describe thoughts and emotions. This language practice might be pivotal in enhancing social understanding among children, particularly those who struggle with peer interactions.
Conclusions and Future Directions
Critically, this study found no significant differences in the benefits of doll play between boys and girls, indicating that both genders can equally gain from this type of play. The researchers concluded that doll play serves as a causal factor in enhancing false-belief reasoning, which is essential for developing a robust theory of mind.

As society grapples with the balance between play and screen time, the findings from Cardiff University and King’s College London underscore the importance of encouraging traditional play methods. Parents and educators alike may need to reconsider the role of digital devices in children’s lives, focusing instead on activities that promote interpersonal skills and emotional growth.
Why it Matters
The results of this study are pivotal in shaping future approaches to child development. As digital devices become increasingly pervasive in daily life, understanding their impact on social skills and emotional intelligence is crucial. Encouraging play with dolls and other traditional toys may be a vital strategy in fostering well-rounded children who are better equipped for social interactions in an ever-evolving digital landscape.