Contextualization in Perspective

In this article, we examine the hypothesis that problem comprehension and computational processes interact during the solving of an arithmetic word problem. Two experiments tested subjects on a series of addition and subtraction word problems, the content of which varied on the basis of problem type and on the magnitude of the numbers involved (problem size). Performance data are presented and analyzed in terms of solution reaction times and error patterns. Results confirmed the main effects of problem size and problem type as factors determining reaction times but failed to show any significant interaction between the two factors. These results suggest that the cognitive processes involved in understanding an arithmetic word problem and in performing the required computations are best explained by a serial processing model. The absence of an interaction between problem comprehension and computational processes questions the notion that automatized retrieval facilitates problem solving and assertions suggesting that increasing computational requirements can interfere with problem-solving performance.     

Cooling-rate-dependent microstructure and mechanical properties of a CuZrAlAg alloy

A Cu₃₆Zr₄₈Al₈Ag₈ alloy rod with a diameter of 10 mm was fabricated using a copper-mould suction casting method. Structural characterization revealed that the rod has different microstructures along the casting direction, including a complete amorphous structure and an amorphous/crystalline composite structure with different amount of B2 CuZr phase. Nanoindentation tests showed that the hardness and the elastic modulus of the crystalline phase are lower than those of the amorphous matrix. The hardness and the elastic modulus of the amorphous matrix decrease with decreasing crystalline proportion of the alloy, while the Vickers hardness of the alloy increases with a reduction in the crystalline proportion.     

The state of order in Fe–Al studied by precession electron diffraction

Precession electron diffraction (PED) has been carried out on a fully ordered Fe–40at.%Al solid solution in order to explore its suitability for determining the state of order. The integrated intensity ratio of a superlattice reflection with respect to a fundamental reflection was measured as a function of the sample thickness and the results are well fitted by dynamical simulations. It is proposed that, in addition to conventional X-ray diffraction, PED may provide access to the state of order at microscopic and nanoscopic scales.     

Islamic Doctrinal Orthodoxy and Religious Orientations: Scale Development and Validation

A measure of Islamic doctrinal orthodoxy was developed, and its relation to personal religious activities was examined. This study also applied the concept of extrinsic, intrinsic, and quest religiosity to Islamic faith as it investigated the structural validity and internal consistency of Islamic versions of the religious orientation scales. A sample of 381 students was taken from three universities in Indonesia. Notably, the scales were found to be psychometrically adequate and their doctrinal orthodoxy and intrinsic and extrinsic religiosity scores significantly related to personal practice of religious activities. A subsequent analysis also revealed that, for Muslims, doctrinal beliefs are largely independent of extrinsic, intrinsic, and quest religiosity and that the three forms of religiosity are three autonomous but continuous dimensions of personal religiosity.     

Soap Opera Exposure and Enjoyment: A Longitudinal Test of Disposition Theory

Drama's appeal is driven in part by dispositions toward story characters and the deservingness of fortunes that befall them. This article reports the results of longitudinal research testing disposition theory's ability to predict viewer responses to daytime soap opera. A student sample completed a survey asking them to evaluate characters over 10 successive weeks. Measures of character morality and positive/negative outcomes for behaviors were used to predict the results of both viewer enjoyment and official Nielsen ratings in representative independent surveys covering the same 10 weeks. Consistent with disposition theory logic, an a priori specified interaction of character morality and behavioral outcome valence—the Disposition Vector Model—predicted higher Nielsen ratings and increased viewer enjoyment when benefaction/debasement befell characters morally deserving of these outcomes. Although well supported in short-term studies, to our knowledge this is the first study to support disposition theory over extended exposure to soap operas and predicting results in independent data sources.     

Evidence for a detrimental relationship between hypertension history, prospective memory, and prefrontal cortex white matter in cognitively normal older adults

Hypertension affects many older adults and is associated with impaired neural and cognitive functioning. We investigated whether a history of hypertension was associated with impairments to prospective memory, which refers to the ability to remember to perform delayed intentions, such as remembering to take medication. Thirty-two cognitively normal older adult participants with or without a history of hypertension (self-reported) performed two laboratory prospective memory tasks, one that relied more strongly on executive control (nonfocal prospective memory) and one that relied more strongly on spontaneous memory retrieval processes (focal prospective memory). We observed hypertension-related impairments for nonfocal, but not focal, prospective memory. To complement our behavioral approach, we conducted a retrospective analysis of available structural magnetic resonance imaging data. Lower white matter volume estimates in the anterior prefrontal cortex were associated with lower nonfocal prospective memory and with a history of hypertension. A history of hypertension may be associated with worsened executive control and lower prefrontal white matter volume. The translational implication is that individuals who must remember to take antihypertensive medications and to monitor their blood pressure at home may be impaired in the executive control process that helps to support these prospective memory behaviors.     

自我不确定感对程序公正效应的调节作用:回顾与展望

自我不确定感是指个体怀疑“自我”,并且对其看法不稳定而产生的内隐与外显的主观感受及反应.其研究方法主要有自我报告法与情境实验法.自DeCremer和Sedikides首先通过实证研究验证了自我不确定感对程序公正效应的调节作用后,研究者们通过将自我不确定感分解为情绪自我不确定、地位不确定和归属不确定以及探讨程序公正认知机制,不断扩展了此领域的研究成果.未来可以通过自我不确定感调节效应的本土化研究,自我不确定感特质与情境成分交互作用的探讨,自我不确定感与自我肯定、信息不确定感等相关变量的关系研究,进一步深化此领域的研究.     

The Relation Between Mothers’ Attitudes Toward Maternal Employment and Social Competence of 36-Month-Olds: The Roles of Maternal Psychological Well-Being and Sensitivity

The relation of mothers’ attitudes on the effects of maternal employment on children, psychological well-being, sensitivity of the mother, and children’s socioemotional development were examined in mothers who worked full time (consistently) and mothers who were unemployed during their children’s early years of growth from 6 months of age. Longitudinal observations of 1,213 mothers and children from age 1 to 36 months from the National Institute of Child Health and Human Development (NICHD) Study of Early Child Care were analyzed using structural equation models. Mothers and children benefited when maternal attitudes were consistent with the mothers’ actual employment status. Among consistently employed mothers, those with positive attitudes about employment had better psychological well-being. When mothers who were unemployed, they believed that maternal employment would have positive consequences for their children’s development, they preferred working outside home and they were more likely to show a low level of psychological well-being and poor quality of mother-child relation. Additionally, maternal well-being mediated the relation between a mother’s attitudes and a child’s social competence. For both groups, better psychological well-being of mothers was positively related to better child’s socioemotional outcome. Maternal sensitivity, however, did not mediate the relation between maternal attitudes and child’s social outcomes. The findings shed light on the need for a sensitive measure of characterizing mothers who work versus those who stay at home in order to better understand the effects on a child’s development.     

Attention to context: U.S. and Japanese children's emotional judgments

A growing number of studies suggest cultural differences in the attention and evaluation of information in adults (Masuda & Nisbett, 2001; Markus & Kitayama, 1991; Hedden, Ketay, Aron, Markus, & Gabrieli, 2008). One cultural comparison, between Westerners, such as Americans, and Easterners, such as the Japanese, suggest that Westerners typically focus on a central single object in a scene while Easterners often integrate their judgment of the focal object with surrounding contextual cues. There are few studies of whether such cultural differences are evident in children. This study examined 48 monolingual Japanese-speaking children residing in Japan and 48 monolingual English-speaking children residing in the U.S.A. (40 to 60 month-olds) in a task asking children to complete a picture by adding the proper emotional expression to a face. The key variable was the context and shift in context from the preceding trial for the same pictured individual. Japanese children were much more likely to shift their judgments with changes in context whereas children from the United States treated facial expression in a more trait-like manner, maintaining the same expression for the individual across contexts.     

Connecting instances to promote children's relational reasoning

The practice of learning from multiple instances seems to allow children to learn about relational structure. The experiments reported here focused on two issues regarding relational learning from multiple instances: (a) what kind of perceptual situations foster such learning and (b) how particular object properties, such as complexity and similarity, interact with relational learning. Two kinds of perceptual situations were of interest here: simultaneous view, where instances are viewed at once, and sequential view, where instances are viewed one at a time (one right after the other). We examined the influence of particular perceptual situations and object properties using two tests of relational reasoning: a common match-to-sample task, where new instances are compared with a common sample, and a variable match-to-sample task, where new instances are compared with a sample that varies on each trial. Experiments 1 and 2 indicate that simultaneous presentation of even highly dissimilar instances, one simple and one complex, effectively connects them together and improves relational generalization in both match-to-sample tasks. Experiment 3 shows that simple samples are more effective than complex ones in the common match-to-sample task. However, when one instance is not used a common sample and various pairs of instances are simply compared, as in Experiment 4, simple and rich instances are equally effective at promoting relational learning. These results bear on our understanding of how children connect instances and how those initial connections affect learning and generalization.