Chinese Early Childhood Environment Rating Scale (trial) (CECERS): A validity study

The Chinese Early Childhood Environment Rating Scale (trial) (CECERS) is a new instrument for measuring early childhood program quality in the Chinese socio-cultural contexts, based on substantial adaptation from the Early Childhood Environment Rating Scale-Revised Edition (ECERS-R). This paper describes the development and validation process of CECERS. Empirical data were collected from a stratified random sample 178 classrooms, from which a random sample of 1012 children was measured for child development outcomes. Guided by the framework of broad conceptualization of validity and validation as advocated by Messick (1989), evidence in a variety of forms is presented and discussed, including content validity considerations (e.g., measuring socially and culturally relevant domains), measurement reliability considerations (e.g., internal consistency reliability, inter-rater reliability), and measurement validity considerations (concurrent validity, criterion-related validity, internal structure based on exploratory factor analysis). The empirical findings for CECERS compare very favorably with the validation outcomes of ECERS-R. The body of evidence accumulated in the validation process supports the use and interpretation of CECERS scores as quality indicators of early childhood education program in the Chinese social and cultural contexts. Limitations and future directions are also discussed.     

The Student–Teacher Relationship Scale revisited: Testing factorial structure,measurement invariance and validity criteria in German-speaking samples

The Student–Teacher Relationship Scale (STRS) is widely used for research in kindergarten and school. The increasing number of applications inside and outside of the U.S. stresses the need to investigate STRS properties, accordingly. The present study used the STRS in German-speaking countries, examining whether (a) the original factor structure is appropriate for a German version, (b) whether applications of a German STRS are invariant across contexts (kindergarten, first and second grade) as well as gender, and (c) whether construct and criterion validity are met. The original STRS was translated into German and filled out by 368 kindergarten and 503 elementary school teachers in Germany and Austria. Observations in kindergartens, student reports in schools, and teacher reports of students’ characteristics served as validity criteria. Results of confirmatory factor analyses (CFAs) did not confirm the original STRS factor structure. Subsequent exploratory factor analyses on training samples resulted in significant item reductions, followed by further CFAs on validation samples. The bootstrapped results yielded an adjusted three-factor model with subscales indicating satisfying alphas and invariance across context and gender. Construct and criterion validity were met for all subscales of the German STRS based on various criteria from both, observations and reports.     

The function of uncertainty reduction in alleviating primary tension in small groups

Two studies manipulated levels of uncertainty and employed self report, observer‐ratings, and behavioral coding to assess primary tension in groups. Results indicate that a) participants cannot differentiate levels of primary tension in groups, b) observers can reliably detect differences in primary tension behaviors, and c) these tense group behaviors decrease as uncertainty is effectively reduced.     

Evaluating Instrument Quality in Science Education: Rasch‐based analyses of a Nature of Science test

Given the central importance of the Nature of Science (NOS) and Scientific Inquiry (SI) in national and international science standards and science learning, empirical support for the theoretical delineation of these constructs is of considerable significance. Furthermore, tests of the effects of varying magnitudes of NOS knowledge on domain‐specific science understanding and belief require the application of instruments validated in accordance with AERA, APA, and NCME assessment standards. Our study explores three interrelated aspects of a recently developed NOS instrument: (1) validity and reliability; (2) instrument dimensionality; and (3) item scales, properties, and qualities within the context of Classical Test Theory and Item Response Theory (Rasch modeling). A construct analysis revealed that the instrument did not match published operationalizations of NOS concepts. Rasch analysis of the original instrument—as well as a reduced item set—indicated that a two‐dimensional Rasch model fit significantly better than a one‐dimensional model in both cases. Thus, our study revealed that NOS and SI are supported as two separate dimensions, corroborating theoretical distinctions in the literature. To identify items with unacceptable fit values, item quality analyses were used. A Wright Map revealed that few items sufficiently distinguished high performers in the sample and excessive numbers of items were present at the low end of the performance scale. Overall, our study outlines an approach for how Rasch modeling may be used to evaluate and improve Likert‐type instruments in science education.     

图书馆服务质量的本土化模型：高阶因子结构与测量

在回顾图书馆服务质量测评当前研究状况的基础上,建立了五维度(因子)的本土化图书馆服务质量模型,并证实存在高阶因子主宰五维度的表现。经过严谨的信度与效度检验,该模型不仅有效揭示了图书馆服务质量测量的高阶因子结构关系,而且可以确定测量指标对各因子的影响程度。据此,将图书馆服务质量指数化,为其改进提供依据。     

关于新形势下高校德育有效性问题的探讨

新时期，高校德育深陷于人们怀疑、否定的眼光之中，难有作为，探讨高校德育有效性问题已不容回避，本从高校德育的支撑点、目标和内容、运作方式和运作主体等方面就如何增强高校德育的实际效果提出了对策。     

Effect of publication month on citation impact

A standard procedure in citation analysis is that all papers published in one year are assessed at the same later point in time, implicitly treating all publications as if they were published at the exact same date. This leads to systematic bias in favor of early-months publications and against late-months publications. This contribution analyses the size of this distortion on a large body of publications from all disciplines over citation windows of up to 15 years. It is found that early-month publications enjoy a substantial citation advantage, which arises from citations received in the first three years after publication. While the advantage is stronger for author self-citations as opposed to citations from others, it cannot be eliminated by excluding self-citations. The bias decreases only slowly over longer citation windows due to the continuing influence of the earlier years’ citations. Because of the substantial extent and long persistence of the distortions, it would be useful to remove or control for this bias in research and evaluation studies which use citation data. It is demonstrated that this can be achieved by using the newly introduced concept of month-based citation windows.     

网络考试系统的安全性研究

介绍了自行开发、基于B/S模式的网络考试系统的有效功能设计部分，详细阐述系统中若干安全     

论律师风险代理制度立法及完善

律师风险代理业务是目前律师界的一项热门服务项目,其主要内容是对胜诉酬金的约定,而中国现行律师法律法规中都没有对此项业务作出规定。对此项业务的利弊分析、法律探讨及对国外相关制度的借鉴有助于使其在法治轨道中运作,也将有助于中国律师制度的完善。