Mixed-effects models are an analytic technique for modeling repeated measurement or nested data. This paper explains the logic of mixed-effects modeling and describes two examples of mixed-effects analyses using R. The intended audience of the paper is psychologists who specialize in cognitive development research. Therefore, the concepts and…

Decades of research and practice in social and emotional development have left us with a body of knowledge that tells us that (1) social, emotional, and cognitive development are intertwined in the brain and in behavior and influence school and life outcomes; (2) social, emotional, and cognitive skills and competencies grow in supportive…

The present study examined adults' understanding of children's early word learning. Undergraduates, non-parents, parents, and Speech-Language Pathologists (N = 535, 74% female, 56% White) completed a survey with 11 word learning principles from the perspective of a preschooler. Questions tested key principles from early word learning research. For…

How do responsive adult-child interactions influence early language development? How do a child's language skills develop in tandem with social-emotional development, executive function, and literacy? What are effective ways to help parents support their child's development? Uncover the answers to these questions in this fascinating book, which…

This commentary critically assesses the importance and limitations of bioconstructionist research on emotional development within the discipline of psychology, broadly conceived, finding that it depends upon theories and methodologies concerning the study of culture that the humanities can provide. The established field of the history of emotions…

Scientists use judgment in deciding what and how much data to present in publications but science degrees rarely address this issue. Instead, scientific knowledge is presented as certain and students have limited opportunities to use their own judgment in the laboratory. A consequence of this may be that students approach science with a moral…

The meaning, mechanism, and function of imitation in early infancy have been actively discussed since Meltzoff and Moore's (1977) report of facial and manual imitation by human neonates. Oostenbroek et al. (2016) claim to challenge the existence of early imitation and to counter all interpretations so far offered. Such claims, if true, would have…

In the last century, Jean Piaget proposed one of the most famous theories regarding cognitive development in children. Piaget proposed four cognitive developmental stages for children, including sensorimotor, preoperational, concrete operational, and the formal operational stage. Although Piaget's theories have had a great impact on developmental…

Mind in the Making and Vroom are partner initiatives that exemplify a unique "civic science" approach to "bringing developmental science into the world." Mind in the Making offers families and professionals working with children 0-8 access to developmental research, by engaging them in an active process of professional…

Mobile phones and other wireless devices that produce electromagnetic fields (EMF) and pulsed radiofrequency radiation (RFR) are widely documented to cause potentially harmful health impacts that can be detrimental to young people. New epigenetic studies are profiled in this review to account for some neurodevelopmental and neurobehavioral changes…

The framework of "plateaus, dips, and leaps" shines light on periods when individuals may be inventing new methods of skilled performance. We begin with a review of the role "performance plateaus" have played in (a) experimental psychology, (b) human-computer interaction, and (c) cognitive science. We then reanalyze two classic…

Scientific literature about neuromyths has proliferated in the last few years. However, there is a gap of knowledge around neuroedumyths. While neuromyths are based on hoaxes about the brain, neuroedumyths use neuroscientific concepts but state consequences for education that are false. This article presents, for the first time, research about…

Modern neuroscience research, including neuroimaging techniques such as functional magnetic resonance imaging (fMRI), has provided valuable insights that advanced our understanding of brain development and learning processes significantly. However, there is a lively discussion about whether and how these insights can be meaningful to the…

This paper explores the trend, between 1905 and the late 1920s in UK and US child psychology, of "discovering," labelling and calculating different "ages" in children. Those new "ages"--from mental to emotional, social, anatomical ages, and more--were understood as either replacing, or meaningfully related to,…

Each year, the Interagency Autism Coordinating Committee (IACC) releases a list of scientific advances that represent significant progress in the field. The "2020 Summary of Advances in Autism Research" provides short, plain language summaries of the top research breakthroughs selected by the IACC from a pool of research articles…