高校研究性教学目标模式研究

根据研究性水平层次高低可以将研究性教学目标划分为三种模式:独立课程型研究性教学模式、系列课程联动型研究性教学模式、独立课程或系列课程和毕业设计联动型研究性教学模式。就具体实施而言,高校应该先易后难,先文后理,先专业课后通修科,先高年级后低年级。     

The Impact of Sample Size and Other Factors When Estimating Multilevel Logistic Models

The design of research studies utilizing binary multilevel models must necessarily incorporate knowledge of multiple factors, including estimation method, variance component size, or number of predictors, in addition to sample sizes. This Monte Carlo study examined the performance of random effect binary outcome multilevel models under varying methods of estimation, level-1 and level-2 sample size, outcome prevalence, variance component sizes, and number of predictors using SAS software. Mean estimates of statistical power were influenced primarily by sample sizes at both levels. In addition, confidence interval coverage and width and the likelihood of nonpositive definite random effect covariance matrices were impacted by variance component size and estimation method. The interactions of these and other factors with various model performance outcomes are explored.     

Predictors of Depressive Symptomatology Among Hispanic First‐Year College Students

The authors examined whether perceptions of self‐esteem, coping self‐efficacy, and emotional intelligence could significantly predict the presence of depressive symptomatology among a sample of 146 Hispanic first‐year college students (53 men, 93 women). The results of a sequential multiple linear regression analysis indicated the 3 predictor variables contributed 43.3% of the variance noted in students’ reporting of depression symptoms through their Patient Health Questionnaire–9 (Spitzer et al., 1999) scores. The authors discuss implications for future research and provide recommendations for college counseling practice.     

窄带隙Ti2O3复合多级碳基底材料的光热转换性能

将窄带隙的Ti2O3负载在由生长碳纳米线阵列的碳毡制成的多级碳基底上制得新型光热转换材料(Ti2O3@CA/CF),考虑了亲水性、电解沉积电位、Ti2O3负载量等因素,为材料的制备提出了最佳的方法。然后用扫描电子显微镜、紫外可见光谱和电化学活性比表面积对样品的物化性质进行了表征,并对制得的Ti2O3碳基底材料的光热性能进行了实验测试。结果表明,Ti2O3@CA/CF具有高达71.9%的光热转换效率以及较高的蒸发率和对各种水体和光强的适应性。     

高考录取方式经济学模型的初探与分析

从经济学角度对高考录取模型进行了分析 ,指出了现实的高考录取模型的缺陷 ,并提出了解决的对策。     

Curriculum development in medical education: From acronyms to dynamism

Medical education is a rapidly expanding discipline with its practitioners drawn from a mix of backgrounds. Among them there is an increased understanding of the centrality of the curriculum process in the translation of educational ideas in practice. There are four main trends that underlie this increased understanding: a widened conception of the major elements of curriculum and their interactivity; a more conceptual and global view of curriculum, the incorporation of ideas from the educational literature and the need for a dynamic overarching model of curriculum. The latter will provide a framework for the ongoing curriculum challenges in the field.     

Many-Level Multilevel Structural Equation Modeling: An Efficient Evaluation Strategy

Structural equation models are increasingly used for clustered or multilevel data in cases where mixed regression is too inflexible. However, when there are many levels of nesting, these models can become difficult to estimate. We introduce a novel evaluation strategy, Rampart, that applies an orthogonal rotation to the parts of a model that conform to commonly met requirements. This rotation dramatically simplifies fit evaluation in a way that becomes more potent as the size of the data set increases. We validate and evaluate the implementation using a 3-level latent regression simulation study. Then we analyze data from a statewide child behavioral health measure administered by the Oklahoma Department of Human Services. We demonstrate the efficiency of Rampart compared to other similar software using a latent factor model with a 5-level decomposition of latent variance. Rampart is implemented in OpenMx, a free and open source software package.     

Conceptual change using multiple interpretive perspectives: Two case studies in secondary school chemistry

Conceptual change is predominantlydescribed as a rational process; however, researchersare beginning to explore alternative explanations forwhy some students learn but others given the sameopportunities do not. New perspectives include socialand motivational factors, ontological issues,modelling ability, intellectual development and thequestion of whether conceptual change is revolutionaryor evolutionary. This paper argues that conceptualchange is best understood when multiple perspectivesare used to interpret chemistry learning. Case studiesof two apparently similar students are used to showthat personal factors and differing interests andpurposes for studying science can significantlyinfluence learning outcomes. The case studies supportan argument that high scores on achievement tests areunreliable indicators of conceptual learning andrecommend that teachers and researchers pay moreattention to qualitative indicators of learning suchas students' conceptual status, modelling level andintellectual position. The findings suggest thatteachers and curriculum developers should take intoaccount the qualitative differences that studies suchas this identify.     

The Comprehensive Counseling Center Model

The authors outline a four-factor model and philosophy for college mental health services that addresses the loss of comprehensiveness in some centers due to changes in organizational structure. Given research on demand for services and retention of those seen in centers, emphasis is placed in particular upon the value of consultation, outreach, and training work across the entire campus community. The model challenges some assumptions made by proponents of integrated care, including its definition, and illustrates the benefits of establishing and maintaining a fully comprehensive college counseling service.