“I Thought We Were Over This Problem”: Explorations of Race in/through Literature Inquiry

This article examines classroom practices that draw upon students' understandings of race and equity as they engage in critical literature inquiry to explore issues of power in our society. Our research team, comprising a fifth-grade classroom teacher, a doctoral candidate, and a university professor, analyzed students' written and digital projects to better understand what new skills, strategies, and meaning-making opportunities emerge when race is centralized in the curriculum. We documented the various ways students were able to voice their thoughts through multimodal learning in an elementary language arts classroom.     

Neural Correlates of Risk Processing Among Adolescents: Influences of Parental Monitoring and Household Chaos

Adolescent risky behavior is related to developmental changes in decision‐making processes and their neural correlates. Yet, research investigating how the family environment relates to risk processing in the adolescent brain is limited. In this study, longitudinal data were collected from 167 adolescents (13–15 years, 53% male) who self‐reported household chaos and their parent's monitoring practices, and completed a decision‐making task during functional MRI at Time 1 and Time 2 (1 year apart). Parental knowledge was positively related to insular risk processing only among adolescents in low‐chaos environments at both time points. Results highlight environmental correlates of insular risk processing in the developing brain.     

Does spatial ability help the learning of anatomy in a biomedical science course?

A three‐dimensional appreciation of the human body is the cornerstone of clinical anatomy. Spatial ability has previously been found to be associated with students' ability to learn anatomy and their examination performance. The teaching of anatomy has been the subject of major change over the last two decades with the reduction in time spent on dissection and greater use of web‐based and computer‐based resources. In this study, we examine whether the relationship between spatial ability and performance in anatomy examinations is sustained in a contemporary curriculum. A comparison of students' performance in a series of tests of spatial ability to their anatomy examination scores in biomedical sciences course exhibited only weak association (r = 0.145 and P = 0.106). This has implications for the use of spatial ability as a predictor of success in introductory subjects in the teaching of anatomy. Anat Sci Educ 7: 289–294. © 2013 American Association of Anatomists.     

UTILITY OF THE STANFORD–BINET INTELLIGENCE SCALES,FIFTH EDITION,WITH ETHNICALLY DIVERSE PRESCHOOLERS

Current research on the use of revisions of intelligence measures with ethnically diverse populations and younger children is limited. The present study investigated the utility of the Stanford–Binet Intelligence Scales, Fifth Edition (SB5), with an ethnically diverse preschool sample. African American and Caucasian preschoolers, matched on age, gender, and parental education, were found to have similar patterns of high and low scores on both the composites and all subtests of the SB5. The present study also found that African American and Caucasian preschool children did not differ on overall cognitive ability as measured by the SB5 Full Scale IQ. Implications and suggestions for further research are discussed.     

Performance of the Grade of Membership Model Under a Variety of Sample Sizes,Group Size Ratios,and Differential Group Response Probabilities for Dichotomous Indicators

Social scientists are frequently interested in identifying latent subgroups within the population, based on a set of observed variables. One of the more common tools for this purpose is latent class analysis (LCA), which models a scenario involving k finite and mutually exclusive classes within the population. An alternative approach to this problem is presented by the grade of membership (GoM) model, in which individuals are assumed to have partial membership in multiple population subgroups. In this respect, it differs from the hard groupings associated with LCA. The current Monte Carlo simulation study extended on prior work on the GoM by investigating its ability to recover underlying subgroups in the population for a variety of sample sizes, latent group size ratios, and differing group response profiles. In addition, this study compared the performance of GoM with that of LCA. Results demonstrated that when the underlying process conforms to the GoM model form, the GoM approach yielded more accurate classification results than did LCA. In addition, it was found that the GoM modeling paradigm yielded accurate results for samples as small as 200, even when latent subgroups were very unequal in size. Implications for practice were discussed.     

Aesthetics and credibility in web site design

Web sites often provide the first impression of an organization. For many organizations, web sites are crucial to ensure sales or to procure services within. When a person opens a web site, the first impression is probably made in a few seconds, and the user will either stay or move on to the next site on the basis of many factors. One of the factors that may influence users to stay or go is the page aesthetics. Another reason may involve a user’s judgment about the site’s credibility. This study explores the possible link between page aesthetics and a user’s judgment of the site’s credibility. Our findings indicate that when the same content is presented using different levels of aesthetic treatment, the content with a higher aesthetic treatment was judged as having higher credibility. We call this the amelioration effect of visual design and aesthetics on content credibility. Our study suggests that this effect is operational within the first few seconds in which a user views a web page. Given the same content, a higher aesthetic treatment will increase perceived credibility.     

莫高窟第85窟壁画地仗酥碱模拟试验

本文以莫高窟第85窟壁画颜料、地仗以及地仗中可溶盐分析结果为依据,制作了含盐量分别为1%、6%、13%的模拟壁画试块,并将其放置于模拟空气湿度变化的实验装置中,观察试块在高低湿度循环时产生的变化.实验表明,试块中含盐量为1%时,相对湿度的变化不会造成酥碱.而含盐量为6%和13%的试块,经过一个高低湿度循环后,就开始产生酥碱的现象,且含盐量13%的较6%的试块发生酥碱的速度快.经过30多个循环后,6%和13%含盐量的试块其酥碱严重程度趋于相同.该模拟试验得到了与莫高窟85窟内相似的酥碱现象.     

Hierarchical Logistic Regression: Accounting for Multilevel Data in DIF Detection

The purpose of this study was to examine the performance of differential item functioning (DIF) assessment in the presence of a multilevel structure that often underlies data from large-scale testing programs. Analyses were conducted using logistic regression (LR), a popular, flexible, and effective tool for DIF detection. Data were simulated using a hierarchical framework, such as might be seen when examinees are clustered in schools, for example. Both standard and hierarchical LR (accounting for multilevel data) approaches to DIF detection were employed. Results highlight the differences in DIF detection rates when the analytic strategy matches the data structure. Specifically, when the grouping variable was within clusters, LR and HLR performed similarly in terms of Type I error control and power. However, when the grouping variable was between clusters, LR failed to maintain the nominal Type I error rate of .05. HLR was able to maintain this rate. However, power for HLR tended to be low under many conditions in the between cluster variable case.