A systematic review was conducted to gain a more nuanced understanding of similarities and distinctions across countries in the development of executive functions (EF). The review includes 26 studies, with child and adolescent participants, that were published between 2006 and 2018. Both similarities and differences within developmental patterns of EF are identified across different countries. Across countries, bilingual children are shown to outperform their monolingual peers. Task improvement with age is not consistently reported in all studies, with no linear effects apparent in children from developing countries or regions. Gender differences on EF measures also vary between countries. Girls perform better than boys on EF tasks and parent and teacher ratings of EF in both Western and East Asian samples. Yet, in Iran and Tanzania, boys receive higher EF scores. From preschool age through adolescence, East Asians outperform Western counterparts on direct assessment measures of EF. However, strong discrepancies can be found between measures of direct EF assessment and parent and teacher ratings of children's EF. Chinese parents rate their children's EF as lower compared with parents from other countries. The role of contextual factors explaining differences in EF development is discussed.
Highlights
This paper presents the first systematic review on the topic of cross‐national variation in children's EF development.
A clearly defined conceptual framework regarding EF facets and analysis of a wide age span underpin this review.
From preschool age through adolescence, East‐Asian children outperform their Western counterparts on direct assessment measures of EF.
Previous research findings indicate that young children from East Asia outperform their counterparts from Europe and North America on executive function (EF) tasks. However, very few cross-national studies have focused on EF development during middle childhood. The current study assessed the EF performance of 170 children in grades 2 and 4 from Hong Kong (n = 80) and Germany (n = 90) in a cross-sectional design. Children completed tasks assessing the main components of EF, namely inhibition (child-friendly Stroop task), updating (Object Span task), and shifting (Contingency Naming task). Results of multilevel models showed that all three EF measures differentiated well between younger and older children across the full sample. However, contrary to our hypothesis and previous research, we did not find any significant differences in EF performance between children from Hong Kong and Germany at primary school age. Our findings highlight the possibility that issues related to the measurement of EF and features specific to Hong Kong and Germany underlie our results.
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