推理能力、认知风格与意识水平对解题迁移的协同影响

以初中生为被试、以平面几何问题为材料进行实验研究,探讨他们的推理能力、认知风格及其对先后问题之间存在共性关系的意识水平对解题迁移的协同影响.结果表明(1)在平面几何解题过程中,当迁移题与源题之间具有结构共同性,且表面相似性和条件隐蔽性的大小属于中等程度时,解题者对先后问题之间存在的共性关系的意识水平对解题迁移有显著影响;(2)在平面几何解题迁移过程中,解题者对先后问题之间共性关系的意识水平在对解题迁移产生影响时与他们的推理能力和认知风格没有交互作用.     

The ends justify the means: The ethical reasoning of environmental public interest groups and their actions

There has been a documented, growing radicalism in the actions of some environmental public interest groups in recent years. In particular, groups pursuing the rights of animals and groups working for the environment have increased their militancy and action. What strikes these authors as curious is the total lack of debate and scholarly inquiry within the management profession over the ethics and tactics of these groups. The purpose of this analysis is to explore the ethics of public interest group activity, offer reasons for the lack of analysis by management researchers, and propose a modest research agenda for future investigations into the ethics of public interest groups.     

Effects of sleep inertia on cognitive performance following a 1-hour nap

This study investigated the effects of a 1-h nap on subsequent performance in spatial memory (SM) and logical reasoning (LR) tasks. The objective was to evaluate the duration of the effects of sleep inertia (SI). The performance was measured in two independent groups of subjects. The 1-h nap took place at 00:00 h in group 1 and at 03:00 h in group 2. In each task, the experimental design comprised one no-nap condition in which subjects had no sleep before the night tests, and a nap condition that comprised the 1-h nap followed by the test sessions. To measure the duration of SI effects, the subjects were tested in two 30-min sessions and the data in each session were analysed in sub-units of time of 3 min each. In each task the results showed no effects on accuracy, and no circadian effects of napping were found. In each task, analyses of pooled data of the two groups showed that the performance in the 1-h nap condition exhibited significant reductions of speed immediately following awakening, when compared with no-nap, reflecting SI effects. In SM, the slowing lasted 24 min, and 27 min in LR. Practical implications of the results are discussed.     

Generalised quasi‐symmetry models for ordinal contingency tables

This paper extends the ordinary quasi‐symmetry (QS) model for square contingency tables with commensurable classification variables. The proposed generalised QS model is defined in terms of odds ratios that apply to ordinal variables. In particular, we present QS models based on global, cumulative and continuation odds ratios and discuss their properties. Finally, the conditional generalised QS model is introduced for local and global odds ratios. These models are illustrated through the analysis of two data sets.     

Randomized response model in a matched pair study

The development of randomized response models for personal interview surveys has attracted much attention since the pioneering work of Warner [1965. Randomized response: a survey technique for eliminating evasive answer bias. J. Amer. Statist. Assoc. 60, 63–69]. Several randomized response models have been developed by researchers for collecting data on both qualitative and the quantitative variables, but none of these models discuss matched pair data. In this paper, we develop a new randomized response model and study its application to an important political question.     

The minimum discrimination information approach in analyzing categorical data

A brief review of the minimum discrimination information (MDI) approach in analyzing categorical data is presented in a question -answer format, An example is given to bring out situations in which the MDI approach is more useful. No new results are proved.     

Comparing time trends in a two-arm longitudinal study with an ordinal categorical response

A within-subject monotonicity index is proposed to summarize the fol-lowup for each subject in a longitudinal study where the response is required to be only ordinal. The individual measures can be weighted to detect different trend behaviors of interest. Asymptotically normal tests for single group alternatives or for comparing the means of two groups are derived and illustrated with clinical data.     

Vulnerability assessment of strait/canals in maritime transportation using fuzzy evidential reasoning approach

The safety and security of straits and canals have been playing an important role in maritime transportation. The disruption of a strait or canal will lead to increased transportation costs and world trade problems. Therefore, an advanced approach incorporating fuzzy logic and an evidential reasoning (ER) algorithm is developed to conduct the vulnerability assessment of straits or canals in this paper. A hierarchical structure is first developed taking into account both qualitative and quantitative factors. The fuzzy rule-based transformation technique is applied to convert quantitative factors into qualitative ones, which enables the application of a fuzzy ER method to synthesize all the information from the bottom to the top along the developed hierarchical structure. The software of intelligent decision system (IDS) is used to facilitate the process of vulnerability assessment. The developed framework then is validated and demonstrated in a case study for vulnerability prioritization which can be used as a reference to ensure the safety and security of straits and canals for decision-makers.     

Screening alternatives graphically by an extended case-based distance approach

Screening is a helpful process of multiple criteria decision aid (MCDA) to reduce a larger set of alternatives into a smaller one containing the best alternatives; thereby, decision makers are able to concentrate on evaluating alternatives within a smaller set. Therefore, determining how to assist decision makers in screening is an important issue for MCDA. This study proposes an extended case-based distance approach incorporating the advantages of a case-based distance method, a mixed-integer programming approach of discriminant analysis, and a multidimensional scaling technique to help decision makers screen alternatives visually in MCDA. The proposed approach can screen alternatives by evaluating sets of cases selected by decision makers, providing visual aids to observe decision context, reducing the number of misclassifications, and improving multiple solution problems. An interactive screening procedure is also developed to provide flexibility so that decision makers can check and adjust screening results iteratively.     

诉讼证据及其结构的逻辑新探

诉讼证据是诉讼制度的核心概念之一,同时也是学界争议最多的概念之一。通过逻辑的视角分析证据概念既有助于廓清一些不必要的理论纷争,同时又能揭示其深层结构,进而获得对证据概念本质的新理解：作为范畴的证据概念在法律规范的语境中是不可定义的;证据的结构是一个可废止推理,该推理的逻辑后承就是核心意义上的证据。