Transfer of learning between 2D and 3D sources during infancy: Informing theory and practice

The ability to transfer learning across contexts is an adaptive skill that develops rapidly during early childhood. Learning from television is a specific instance of transfer of learning between a two-dimensional (2D) representation and a three-dimensional (3D) object. Understanding the conditions under which young children might accomplish this particular kind of transfer is important because by 2 years of age 90% of US children are viewing television on a daily basis. Recent research shows that children can imitate actions presented on television using the corresponding real-world objects, but this same research also shows that children learn less from television than they do from live demonstrations until they are at least 3 years old; termed the video deficit effect. At present, there is no coherent theory to account for the video deficit effect; how learning is disrupted by this change in context is poorly understood. The aims of the present review are: (1) to review the conditions under which children transfer learning between 2D images and 3D objects during early childhood and (2) to integrate developmental theories of memory processing into the transfer of learning from media literature using Hayne’s (2004) developmental representational flexibility account. The review will conclude that studies on the transfer of learning between 2D and 3D sources have important theoretical implications for general developmental theories of cognitive development, and in particular the development of a flexible representational system, as well as policy implications for early education regarding the potential use and limitations of media as effective teaching tools during early childhood.     

Body Size Stereotyping and Internalization of the Thin Ideal in Preschool Girls

Despite the multitude of negative outcomes associated with thin-ideal internalization for girls and women living in westernized societies, we know very little about how early in development thin-ideal internalization occurs or how it might manifest in very young children. This cross-sectional investigation assessed body size stereotyping and thin-ideal internalization in 55 preschool girls (ages 3–5 years) from the Southwestern U.S. using a new method of assessment that is more sensitive to the cognitive developmental stage of this age group. Results suggest that girls as young as 3 years old are already emotionally invested in the thin ideal. Discussion considers moving beyond the demonstration of fat stigmatization per se to measure how personally invested preschool children may be in beauty ideals.     

Do early interviews affect children's long‐term event recall?

The present study examined the effects of the timing of an initial interview on children's recall of an event over delays of 1 and 2 years. Fifty‐five children who had originally participated in a novel event when they were between 5‐ and 6‐years old and had been interviewed about it following either short (1 week or less) or long (1 or 6 month) delays were re‐interviewed 1 and 2 years after the original experience. An additional 20 children not interviewed prior to the 1‐year interview were included as a no‐prior‐interview control group. Long delays to the initial interview led to better open‐ended recall at the 1‐year delay than short delays to initial interview or no prior interview. However, initial interviews that followed short delays had a greater impact on children's responses to specific questions. The results suggest that prior interview history is an important consideration when examining the effects of long delays on children's event reports, and that the effects of the timing of an initial interview depend on the nature of the information recalled. Copyright © 2004 John Wiley & Sons, Ltd.     

Representation of objects and events: why do infants look so smart and toddlers look so dumb?

Research has demonstrated that very young infants can discriminate between visual events that are physically impossible versus possible. These findings suggest that infants have knowledge of physical laws concerning solidity and continuity. However, research with 2-year-olds has shown that they cannot solve simple problems involving search for a hidden object, even though these problems require the same knowledge. These apparently inconsistent findings raise questions about the interpretation of both data sets. This discrepancy may be resolved by examining differences in task demands.     

童年中期儿童社交地位、社交自我知觉与孤独感的关系研究

以554名3～6年级的小学生为被试,采用量表法、同伴提名法探讨童年中期儿童社交地位、社交自我知觉与孤独感的关系。结果表明:(1)3～6年级小学生的孤独感有显著的性别差异,男生的孤独感显著高于女生。(2)不同社交地位的儿童其孤独感也不同,低接纳组儿童的孤独感显著高于一般接纳组和高接纳组,而一般接纳组与高接纳组儿童的孤独感差异不显著。(3)在高接纳组儿童中,社交自我知觉消极的儿童其孤独感显著高于社交自我知觉一般的儿童,社交自我知觉一般的儿童其孤独感显著高于社交自我知觉积极的儿童;但是在一般接纳组和低接纳组中,社交自我知觉不同的儿童其孤独感并没有显著差异。     

Caring,Gender Role Orientation,and Volunteering

The current studies were conducted to examine two questions regarding the development of an ethic of care versus an ethic of justice, where the former is associated with being female and the latter is associated with being male. First, does gender role orientation in adolescence predict the ethical orientation one adopts better than gender itself does? Second, does adolescents' ethical orientation predict their volunteering behavior? To answer these questions, two studies were conducted. In Study 1, adolescents completed Bem's Sex Role Inventory (BSRI) and Jensen's World View Questionnaire (WVQ) which assesses ethical orientation. Girls and individuals high in femininity were higher on the ethic of care than were boys and individuals high in masculinity. In addition, individuals with a feminine gender orientation received higher care scores than individuals with an androgynous orientation. Regression analyses indicated that gender orientation accounted for more of the variance in the ethic of care than did gender. In Study 2, older adolescents completed Jensen's WVQ and were subsequently asked to volunteer in one of two settings: a personal setting or an impersonal setting. Individuals high in the ethic of care were more likely to volunteer and volunteered for more hours, but volunteered equally often in the two types of settings. Individuals who “apologized” for being unable to volunteer were higher on caring. The results are discussed in the context of Gilligan's theory of socialization to morality.

     

Explaining default intuitions using maximum entropy

While research into default reasoning is extensive and many default intuitions are commonly held, no one system has yet captured all these intuitions nor given a formal account to motivate them. This paper argues that the extended maximum entropy approach which incorporates variable strength defaults provides a benchmark for default reasoning that is not only objectively motivated but also satisfies all the accepted default intuitions. It is shown that the behaviour of the approach coincides with a wide range of default intuitions taken from examples in the literature, and can be used to explain why some examples have led to confusion. Moreover, analysing the solutions produced by the maximum entropy approach enables clearer differentiation between the default knowledge they contain and the default inferences required of the reasoning system. This suggests that the maximum entropy approach can be used as a benchmark both for eliciting default knowledge when building a knowledge base and, by comparison, for clarifying the underlying biases of other default reasoning systems.