This meta-analysis examines the inconsistent findings across experimental studies that compared children’s learning outcomes with digital and paper books. We quantitatively reviewed 39 studies reported in 30 articles (n = 1,812 children) and compared children’s story comprehension and vocabulary learning in relation to medium (reading on paper versus on-screen), design enhancements in digital books, the presence of a dictionary, and adult support for children aged between 1 and 8 years. The comparison of digital versus paper books that only differed by digitization showed lower comprehension scores for digital books. Adults’ mediation during print books’ reading was more effective than the enhancements in digital books read by children independently. However, with story-congruent enhancements, digital books outperformed paper books. An embedded dictionary had no or negative effect on children’s story comprehension but positively affected children’s vocabulary learning. Findings are discussed in relation to the cognitive load theory and practical design implications.

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This review concerns how quality in ECEC is thematized and examined in Norwegian research published in 2010–2021. The review contributes to developing relevant professional knowledge and insight into what quality in ECEC is, should be or can be. A systematic scoping review includes 97 empirical studies of quality in the Norwegian ECEC context. The results show an increase in studies addressing quality after the year 2017. Most studies use interviews and observations, i.e., qualitative data. Research based on quantitative studies mainly applies to questionnaires, whereas multi-method designs occur with the third greatest frequency. The majority of the studies are descriptive or explore relationships. A few studies concern method development, interventions or reviews of the literature. ECEC staff and ECEC teachers are the most common informants. Two-thirds of the studies included were published in English, and only one-third were published in Norwegian. Thematically, process quality emerges as the most studied dimension of quality, dominated by investigating the aspect of staff–child interactions. About one-third of the studies investigate structural quality, with most attention paid to the physical environment and the organization of the ECEC provisions. Less research is directed at result (outcome) quality and curriculum quality. This overview contributes to increased knowledge about how quality is understood and used in research, as an essential prerequisite for creating a safe and sound everyday life for children in ECEC.