Objective: The climate crisis is the defining issue of our time. Educational and developmental psychologists can make clear and important contributions to addressing this existential threat. The articles in the Climate Crisis Special Issue take on the issue of climate change from multiple angles, with varied populations, using different research…

Jeremy Sawyer recounts that, after Lev S. Vygotsky's death, Jean Piaget conceded the Russian psychologist correctly understood the social origins, functions, and developmental trajectory of children's egocentric speech (now called private speech) but dismissed this work as irrelevant to children's egocentrism or nondifferentiation of perspectives.…

In this commentary on the special issue on emotional development, I focus on the papers by Holodynski and Seeger (2019) and by Hoemann, Xu, and Barrett (2019). I suggest that although understanding our emotions is an important part of emotional development; emotional development cannot be reduced to concept development, even when such concepts…

Computer vision algorithms have made tremendous advances in recent years. We now have algorithms that can detect and recognize objects, faces, and even facial actions in still images and video sequences. This is wonderful news for researchers that need to code facial articulations in large data sets of images and videos, because this task is time…

This study aimed to facilitate a better understanding of the psychological characteristics of maltreated children by comparing attachment representations between maltreated and non-maltreated pre-schoolers. Participants included 46 maltreated and 48 non-maltreated (children for whom evidence of maltreatment has not been identified or reported)…

I argue that emotion research needs formal (mathematical) theory to address two central questions. How does evolution shape mechanisms of emotion development across generations, depending on environmental conditions? How do these mechanisms generate emotions, based on lifetime experience and current context? Formal modeling enables researchers to…

The specific strategies that individuals use to regulate their emotions have shown strong associations with various indices of well-being. However, theoretical accounts suggest that strategy use, and the associations between strategy use and well-being, may change across the life span. Attempts have been made to assess whether levels of strategy…

Questions concerning longitudinal stability and multi-method consistency are critical to temperament research. Latent State-Trait (LST) analyses address these directly, and were utilized in this study. Thus, our primary objective was to apply LST analyses in a temperament context, using longitudinal and multi-method data to determine the amount of…