Do the gestures that speakers produce while talking significantly benefit listeners' comprehension of the message? This question has been the topic of many research studies over the previous 35 years, and there has been little consensus. The present meta-analysis examined the effect sizes from 63 samples in which listeners' understanding of a…

The main goal of the study was to map the difficulties and cognitive processes among adolescents (aged 13-21, N = 30) and adults (aged 25-66, N = 30) with mild and moderate intellectual disability (ID) when solving analogical problems. The participants were administered the "Conceptual and Perceptual Analogical Modifiability" test. A…

Purpose is an internal compass that integrates engagement in activities that affect others, self-awareness of one's reasons, and the intention to continue these activities. We argue that purpose represents giftedness in intrapersonal intelligence, which processes information related to self, identity, self-regulation, and one's place in the world.…

The authors investigated the differences between 8-year-olds (n = 80) and adults (n = 80) in recognition of felt versus faked enjoyment smiles by using a newly developed picture set that is based on the Facial Action Coding System. The authors tested the effect of different facial action units (AUs) on judgments of smile authenticity. Multiple…

The study investigated at what age children draw boundaries around pairs of objects that share either similarity or proximity. In two studies (N=132 and N=252) using a Wertheimer array, a clear age trend between 4 and 8 years showed that while young children were more likely to code objects into individual regions, older children were more likely…

Within the context of social, demographic, and historical change and informed by a life course perspective, this article examines patterns of relating between grandparents and grandchildren within families across and within generations. Using qualitative data from a study of 10 multigenerational families (N = 86), the analysis assesses continuity…

Given its important role in mathematics as well as its role as a gatekeeper to future educational and employment opportunities, algebra has become a focal point of both reform and research efforts in mathematics education. Understanding and using algebra is dependent on understanding a number of fundamental concepts, one of which is the concept of…

Photocopy humor is defined as any facsimile, photocopy, or wire-copy line drawing, iconography, or textual material that was drawn or written for distribution to a larger select audience using the available technology to disperse material intended to be humorous. Professional humor is excluded from this consideration. The content of photocopy…