An empirical investigation of the statistical properties of generalized single-case randomization tests

Adapting Edgington's [J. Psychol. 90 (1975) 57] randomly determined intervention start-point model, Levin and Wampold [Sch. Psychol. Quart. 14 (1999) 59] proposed a set of nonparametric randomization tests for analyzing the data from single-case designs. In the present study, the performance of Levin and Wampold's four basic tests (independent start-point general and comparative effectiveness, simultaneous start-point general and comparative effectiveness) was examined with respect to their Type I error rates and statistical power. Of Levin and Wampold's four tests, all except the independent start-point comparative effectiveness test maintained their empirical Type I error rates and had acceptable power at larger sample-size and effect-size combinations. The one-tailed comparative intervention effectiveness test for the independent start-point model was found to be too liberal, in that it did not maintain its Type I error rate. Although a two-tailed application of that test was found to be conservative at longer series lengths, it had acceptable power at larger sample-size and effect-size combinations. The results support the utility of a versatile new class of single-case designs that permit both within- and between-unit statistical assessments of intervention effectiveness.     

我国医学院校临床实习质量评价实施现状调查研究

对全国112所高等医学院校临床实习质量评价实施现状调查表明:我国临床实习质量评价方法单一,绝大多数学校采用床边考试和多选题加论述题的考试方法来评价临床实习质量.为此,应进一步开展临床实习质量综合评价的研究,尽快建立一套科学合理、行之有效的临床实习质量综合评价体系.     

8 OOO名河北青少年预防艾滋病基本知识掌握情况调查与分析

对8000名河北青少年进行问卷调查,表明大部分青少年对艾滋病的传播途径、预防等知识有所了解,也有一定数量的青少年对艾滋病基本知识的了解不够全面和准确.今后的艾滋病预防宣传教育需要在广度、深度上加强,注重知识性、影响性和实效性,在宣传教育上注重社会、学校、家庭教育的结合.     

中学生笔记策略及其干预研究

做笔记(note-taking)是学生在听课和阅读时普遍使用的学习策略,借此可适当记录所学内容以促进记忆和思考,从而有效控制自己的认知过程和对材料信息的加工,有助于发现和建立新旧知识的内在联系,建构对知识的理解。本研究运用调查法、实验法和训练法对中学生的笔记策略进行实证研究。第一,通过自编问卷调查了中学生的笔记策略运用状况并揭示其特点;第二,通过实验研究探索了学生笔记水平与学业成绩的关系,并分析笔记策略运用的影响因素;第三,运用训练法比较了笔记策略辅导的不同方式对学生的影响,探讨学习策略辅导有效性的影响因素。本研究对认知心理学研究的重要领域~学习策略研究以及学校心理辅导的重要工作~学习策略辅导具有一定的启迪作用。     

Identification of the possible origin of the body target that differentiates play fighting from serious fighting in syrian golden hamsters (Mesocricetus auratus)

Play fighting in the Syrian Golden hamster Mesocricetus auratus can be distinguished from serious fighting by the targets attacked in each case. In play fighting, the animals attack and defend the cheeks and cheek pouches, whereas in serious fighting they attack and defend the rump and lower flanks. Since play typically involves the use of behaviors borrowed from other functional contexts, this paper investigates the origin of the cheek target during play fighting. Comparison of resident-intruder serious fighting with awake and anesthetized intruders does not reveal the cheek to be an inhibited target for serious attack. Similarly, analysis of social investigation and allog-rooming, while revealing the ears to be important targets, do not show the cheeks to be targets in these behaviors. Sniffing, licking, and nibbling of the cheek area appear to occur mainly during sexual encounters by males. This area, seemingly a sexual target, may be the one utilized during play fighting.     

情绪智力理论结构的实证研究

本文对Ｓａｌｏｖｅｙ和Ｍａｙｅｒ提出的情绪智力理论结构进行了因子分析研究,证明了该结构基本变量个体反应的合理性,但对其因子分类提出了不同的理论分析和分类解释;对Ｇｏｌｅｍａｎ的情绪智力结构进行了比较研究;为编制“情绪智力量表”作了必要的理论准备。     

医护人员对患者权利的保护情况调查分析

采用现场问卷方式调查统计结果表明:大部分医护人员了解患者的相应权利,对患者权利具有一定的保护意识,但部分患者权利保护不足,存在易发生医患纠纷隐患,需要引起临床医护人员的重视,不断加强法制观念教育.     

进展期胃癌术后生存质量影响因素探讨

胃癌是我国发病率和病死率较高的恶性肿瘤,且住院病例90％以上为中晚期。因此预后不佳。近年来在进展期胃癌诊断和治疗方面有较大进展,尤其是人们对术后生存质量的重视。本文初步探讨了进展期胃癌术后生存质量的影响因素：如患者一般状况、手术方式、术后辅助放化疗和中医药治疗等。     

乌鲁木齐解放南路清真寺现状调查及特点分析

乌鲁木齐市解放南路汇集了20多座清真寺,历史悠久、文化积淀深厚。本文以实证研究的方法对解放南路一线清真寺现状进行了调查,并对其特点做了初步的分析。本文认为,虽然各穆斯林民族在文化传统、历史渊源和语言习俗等方面的差异在宗教空间上构成文化多样性面貌,但是,穆斯林民族善于经商的历史传统和社会实践,不仅通过商品的交换和社会文化的互动实现穆斯林群体内部的和谐相融,而且促进了当地社会经济、社会的完整与成熟。     

Multicriteria Optimization Technique for Optimal Design of Orthotropic Bridges

The design improvement of large‐scale structures such as cable stayed and suspension bridges with large spans is one of the major engineering optimization problems faced by design engineers. In many real‐life engineering design problems, it is necessary to carry out large‐scale experimental physical models for only one prototype to construct the feasible solution set that is too expensive and not practical. For these reasons, an experimental search for optimal solutions is often not carried out at all. This paper presents a technique for multicriteria analysis, which involve the finite element analysis of the prototype in the optimization process. The improvement of the Suez Canal Bridge in Egypt is introduced as a real‐life large‐scale case study. The parameter space investigation method, the visual basic for application programming language, and Femap as finite element analysis software provide an implementation tools to construct the feasible and Pareto solution sets for the studied bridge. An efficient combination between the parameter space investigation method and the finite element programme was successfully investigated to obtain the Pareto solution set. This study shows possibility to apply the multicriteria optimization method for more applications on different large‐scale structural systems in the future. Copyright © 2013 John Wiley & Sons, Ltd.