Early childhood is characterized by rapid increases in both motor skills and executive function skills. Rather than simply codeveloping, the development of motor and executive function skills may be linked causally. In this article, we introduce corticomuscular coherence as a paradigm for psychologists interested in testing mechanistic questions…

Knowing the temporal direction of causal relations is critical for producing desired outcomes and explaining events. Existing evidence suggests that children start to grasp that causes must precede their effects (the temporal priority principle) by age 3; however, whether younger children also understand this has, to our knowledge, not previously…

Across all cultures, parents have intuitive ideas ("ethnotheories") of what undesirable child characteristics are as well as how to explain them. Yet there have been relatively few cross-cultural comparisons of parents' ethnotheories about the nature and causes of child misbehavior. 108 mothers of 5-year-old children from the United…

Children's self-regulation has been studied from a cognitive-behavioral perspective. However, the vital learning process involves how students absorb, assimilate, and respond to surrounding factors; thus, self-regulation also should be examined from a sociocultural perspective to support children's autonomous rather than controlled…

This study examined children's emotion attributions and moral judgements to hypothetical procedural justice outcomes when the candidates were equal in merit but different in need. Children (7 to 11 years old, N = 88) were presented with four vignettes depicting resource-rich and resource-poor candidates losing educational materials and…

Children of teen mothers have worse academic, labor market, and behavioral outcomes in the United States, but it is not clear whether these poor outcomes are caused by having a young mother or driven by selection into teen motherhood. Understanding the reasoning behind poor child outcomes is important for designing effective policies to improve…

How does language shape mathematical development? In this article, we consider this question by reviewing findings from cross-sectional and longitudinal research. In this literature, we find that differences in the structures of languages and individual variations in language ability are associated with mathematical performance in both obvious and…

The question of when moral identity first develops in childhood deserves more considered investigation. In this article, we examine the claim that moral identity first emerges in middle-childhood (8-12 years). An approach is taken here whereby a tendency to attribute moral shame under conditions entailing moral identity failure is considered as…

Remembering to carry out intended actions in the future, known as prospective memory (PM), is an important cognitive ability. In daily life, individuals remember to perform future tasks that might rely on effortful processes (monitoring) but also habitual tasks that might rely on more automatic processes. The development of PM across childhood in…

This paper presents data from a Forest School project aimed at impacting upon children and young people's emotional wellbeing. It uses a theory of change methodology to evaluate impact and explore the causal processes within the project. Mixed methods data are presented and analysed in relation to how different parts of the Forest School approach,…

This dissertation consists of three independent chapters in applied microeconomics. In the first chapter, I study the causal effect impact of early life circumstances on adult psychological well-being using the property reform in China as a positive and policy driven change in economic resources in early life. Exploiting the staggered adoption of…