Integer programs for one- and two-mode blockmodeling based on prespecified image matrices for structural and regular equivalence

Establishing blockmodels for one- and two-mode binary network matrices has typically been accomplished using multiple restarts of heuristic algorithms that minimize functions of inconsistency with an ideal block structure. Although these algorithms likely yield exceptional performance, they are not assured to provide blockmodels that optimize the functional indices. In this paper, we present integer programming models that, for a prespecified image matrix, can produce guaranteed optimal solutions for matrices of nontrivial size. Accordingly, analysts performing a confirmatory analysis of a prespecified blockmodel structure can apply our models directly to obtain an optimal solution. In exploratory cases where a blockmodel structure is not prespecified, we recommend a two-stage procedure, where a heuristic method is first used to identify an image matrix and the integer program is subsequently formulated and solved to identify the optimal solution for that image matrix. Although best suited for ideal block structures associated with structural equivalence, the integer programming models have the flexibility to accommodate functional indices pertaining to regular equivalence. Computational results are reported for a variety of one- and two-mode matrices from the blockmodeling literature.     

Heuristic Implementation of Dynamic Programming for Matrix Permutation Problems in Combinatorial Data Analysis

Dynamic programming methods for matrix permutation problems in combinatorial data analysis can produce globally-optimal solutions for matrices up to size 30×30, but are computationally infeasible for larger matrices because of enormous computer memory requirements. Branch-and-bound methods also guarantee globally-optimal solutions, but computation time considerations generally limit their applicability to matrix sizes no greater than 35×35. Accordingly, a variety of heuristic methods have been proposed for larger matrices, including iterative quadratic assignment, tabu search, simulated annealing, and variable neighborhood search. Although these heuristics can produce exceptional results, they are prone to converge to local optima where the permutation is difficult to dislodge via traditional neighborhood moves (e.g., pairwise interchanges, object-block relocations, object-block reversals, etc.). We show that a heuristic implementation of dynamic programming yields an efficient procedure for escaping local optima. Specifically, we propose applying dynamic programming to reasonably-sized subsequences of consecutive objects in the locally-optimal permutation, identified by simulated annealing, to further improve the value of the objective function. Experimental results are provided for three classic matrix permutation problems in the combinatorial data analysis literature: (a) maximizing a dominance index for an asymmetric proximity matrix; (b) least-squares unidimensional scaling of a symmetric dissimilarity matrix; and (c) approximating an anti-Robinson structure for a symmetric dissimilarity matrix. We are extremely grateful to the Associate Editor and two anonymous reviewers for helpful suggestions and corrections.     

Origins,uses of,and relations between goal programming and data envelopment analysis

Origins and uses of ‘goal programming’ and ‘data envelopment analysis’ (DEA) are identified and discussed. The purpose of this paper is not only to review some of the history of these developments, but also to show some of their uses (e.g. in statistical regression formulations) in order to suggest paths for possible further developments. Turning to how the two types of models relate to each other, the ‘additive model’ of DEA is shown to have the same structure as a goal programming model in which only ‘one‐sided deviations’ are permitted. A way for formally relating the two to each other is then provided. However, the objectives are differently oriented because goal programming is directed to future performances as part of the planning function whereas DEA is directed to evaluating past performances as part of the control function of management. Other possible ways of comparing and combining the two approaches are also noted including statistical regressions that utilize goal programming to ensure that the resulting estimates satisfy the multi‐criteria conditions that are often encountered in managerial applications. Both goal programming and DEA originated in actual applications that were successfully addressed. The research was then generalized and published. This leads to what is referred to as an ‘applications‐driven theory’ strategy for research that is also described in this paper. Copyright © 2006 John Wiley & Sons, Ltd.     

The operation of Lake Kariba: A multiobjective decision analysis

The paper describes a successful application of Bayesian decision analysis to the operation of the Lake Kariba hydropower system. This management problem is complicated by the high uncertainty of the inflow process, multiple and conflicting objectives and the influence of time on some of the parameters in the management task. Inflows to the reservoir are forecast through dynamic linear models. Managerial preferences are modelled through a multiattribute utility function. Since the solution of the exact model is computationally too demanding, a heuristic method is applied to find a feasible control strategy. A comparison with results obtained by methods used previously demonstrates the superiority of the methodology presented here.     

Analytical psychology and its relation to psychoanalysis. A personal view

Jungian analysis is a process based on analytical psychology; it shows local variations giving emphasis to different aspects of Jung's work within the various societies which make up the IAAP. I describe the orientation of the Society of Analytical Psychology (SAP). I have emphasized the different origins of psychoanalysis and analytical psychology and described how, because we encounter the same clinical phenomena, our differences centre on technique and interpretation in the context of our theoretical differences (see Astor 1998, p. 697 & 2001). In the main the link to psychoanalysis has come from the connection forged by Fordham, who recognized that Jung and Klein shared a similar perception of the significance of unconscious phantasy. For Klein unconscious phantasy was the primary unconscious content, and this is different, as Spillius has recently pointed out, from Freud for whom, 'the prime mover, so to speak, is the unconscious wish.     

Positive organizational psychology,behavior, and scholarship: A review of the emerging literature and evidence base

The positive psychology movement seems to have stimulated new research and applications well beyond the discipline of traditional psychology. Among the various areas of inquiry, research and scholarship about positive organizations have received considerable attention from both researchers and practitioners. The current review examined the scholarly literature published between 2001 and 2009 on positive organizational psychology to provide a detailed picture of the current state of the field. This review sought to discover the overall growth rate, trends, and prevalent topics in the literature. It also aspired to provide an understanding of the empirical evidence for each topic through in-depth reviews. The findings suggest that there is a growing body of scholarly literature and an emerging empirical evidence base on topics related to positive organizations. Strengths, limitations, and implications of building a practical knowledge base for making significant improvements in the quality of working life and organizational effectiveness are discussed.     

Radio psychology: A comparison of listeners and non-listeners

The major objective of this study was the application of help-seeking models to the study of radio psychology. A total of 443 subjects was divided into two research groups, non-listeners (n = 246) and listeners (n = 197) to at least one of two Israeli radio counselling programmes dealing with parent-child and interpersonal relationships. Through telephone interviews the subjects' responses to the instruments designed specifically for this type of study were reported: listening motivations, attitudes towards psychological help and reasons for non-listening. The results revealed that while listeners do not necessarily perceive themselves as help-seekers they, as well as the non-listeners, attributed listening to the motivations of curiosity, comparison with others and attaining psychological knowledge. The results suggested that listening to radio psychology programmes is a means of facilitating the earlier stages of the help-seeking process.     

An evaluation of positive psychology intervention effectiveness trials using the re-aim framework: A practice-friendly review

Meta-analyses indicate the efficacy of positive psychology interventions in promoting well-being. But, despite accumulating empirical and anecdotal evidence of these interventions’ implementation in real-world settings, no review of effectiveness research exists. Accordingly, we identified 40 positive psychology intervention effectiveness trials targeting adults, and scored their reporting using the practice-friendly RE-AIM tool which assesses five dimensions of intervention utility: Reach, Efficacy, Adoption, Implementation and Maintenance. Reporting levels varied substantially: reporting on Reach scored 64%; Efficacy scored 73%; Adoption scored 84%; Implementation scored 58%; and Maintenance scored 16%. Within these five dimensions, reporting on participation rates, methods to select delivery agents, differences between participants and non-participants, programme maintenance and costs, was particularly sparse. The studies involved 10,664 participants, approximately half required specialist delivery, and 12 were researcher delivered. To maximize the potential of PPIs for population health promotion, expanded reporting on effectiveness trials is required. Recommendations to assist this process are offered.     

预设路径模型及其在认知心理学研究中的应用

预设路径模型(Fixed-links modeling)是在结构方程模型框架下发展出的用于分析心理学实验数据的统计模型。该类模型的主要特征是根据前期理论基础和实验设计,通过预先设定模型中显变量与潜变量之间的因素载荷矩阵实现对显变量方差的拆分。因素载荷矩阵的设定主要基于实验水平与所表征的心理过程之间的关系,选取相应函数来表征不同实验水平之间的变化趋势。该模型在表征工作记忆、注意和学习的内部加工过程及揭示不同认知过程的具体联系中发挥了重要作用。     

A variable neighborhood search method for generalized blockmodeling of two-mode binary matrices

The clustering of two-mode proximity matrices is a challenging combinatorial optimization problem that has important applications in the quantitative social sciences. We focus on one particular type of problem related to the clustering of a two-mode binary matrix, which is relevant to the establishment of generalized blockmodels for social networks. In this context, clusters for the rows of the two-mode matrix intersect with clusters of the columns to form blocks, which should ideally be either complete (all 1s) or null (all 0s). A new procedure based on variable neighborhood search is presented and compared to an existing two-mode K-means clustering algorithm. The new procedure generally provided slightly greater explained variation; however, both methods yielded exceptional recovery of cluster structure.     

The rise and rise of social psychology in Asia: A bibliometric analysis

The growth of social psychology in Asia from 1970 to 2008 was examined through a bibliometric analysis of articles in the ISI Web of Science database that listed Asian‐based authors. The 1866 articles have appeared at an accelerating rate, and represent a rapidly‐growing share of global publications in the field. Publication trajectories of different Asian nations show the Indian first wave, Hong Kong and Japan's second wave, and China and Taiwan's third wave of growth. Trends in the rates of Asian first authorship, single‐nation authorship, and cross‐cultural research suggest that Asian social psychology is increasingly more autonomous and distinctive.     

Community psychology values and the culture of graduate training: A self-study

In this self-study of an M.A. program in community psychology, the authors focused on evaluation of training goals related to the values of collaboration, empowerment, and diversity. Employing quantitative and qualitative methods, the evaluator, a thesis student in the program, cooperated with a stakeholder committee and other student, staff, and faculty members of the program to construct the methods and interpret the findings. Although the converging sources of data showed that the program was meeting its process goals to some extent, several key issues in the culture of training, such as the status of women, the psychological sense of community, and a supportive learning environment, needed improvement. The authors interpret the findings in terms of the impact of the university system and patriarchal norms on training in community psychology. This study is based on the first author's M.A. thesis, which the second author supervised. Judit Alcalde works in health promotion with the Regional Municipality of Waterloo, Community Health Department. She presented an earlier version of this work at the conference of the Canadian Psychological Association, Calgary, Alberta, June 1991. We are grateful to the thesis committee members for their support and guidance, to our colleagues for their participation, to Paul Davock, and to the reviewers and editor for their helpful comments.     

Interrupted time-series analysis and its application to behavioral data

This paper uses a question-and-answer format to present the technical aspects of interrupted time-series analysis (ITSA). Topics include the potential relevance of ITSA to behavioral researchers, serial dependency, time-series models, tests of significance, and sources of ITSA information.     

解释学的后现代转向及其对后现代心理学的意义

随着后现代思潮的兴起,解释学领域出现了后现代转向,在对解释本身及解释模式的阐释、对成见的看法以及真理观等方面有许多转变,这些转变对后现代心理学产生很大影响,表现在:对研究对象的分析水平由个体中心转向对关系的研究;研究方法上由唯一客观的实证方法转向多元方法论;研究原则上由价值中立转向强调历史文化因素的影响;知识观上由追求知识的客观性、普适性转向知识的社会建构性。同时,后现代解释学对心理现象和实践应用的认识,对克服后现代心理学认识论和方法论上的相对主义也很有启发。     

The dynamic programming matching analysis of handwriting movement in delayed vision

Abstract: Dynamic programming matching analysis of the velocity profile of handwriting was used to examine temporally invariant characteristics of handwriting. This was done by comparing the performance of 12 subjects in writing five words under various delayed visual feedback conditions. The rate of temporally invariant handwriting decreased when delay of visual feedback was introduced. That is, the mean number of fluctuations or hesitations increased as a function of the delay time. This indicates that subjects wrote words by segmenting their movements into submovements. The relative positions of the boundaries of submovements was shown using dynamic programming matching analysis by the distribution of fluctuations along a time axis of templates. The results suggest the development of a segmented "move-and-wait" strategy under conditions of delayed vision. It was shown that in the "move" phase, subjects performed appropriate submovements as smoothly as in the no delay condition and waited during the delay until visual feedback caught up. The increased errors were due to inadequate segmentation of movements.     

Developing coherence in community and clinical psychology: the integration of idealism and pragmatism

Illustrations of how ideas from community psychology may be integrated with clinical psychological thinking and practice are described from the perspective of a clinical psychologist working in the NHS. The intentions are to consider socially relevant conceptualizations of the causes of people's well-being and distress, and to develop ways of helping individuals and communities to clarify and address these causes. Incorporating an analysis of social power also necessitates a critical awareness of the limited potency of psychological interventions. © 1998 John Wiley & Sons, Ltd.     

A rose by any other name: Maintaining the name and highlighting the uniqueness of psychology as a health care profession

In this article, we reply to the comments made by Holden and Levant (preceding articles). While we agree with their goals of expanding the scope of practice of psychology, standardizing training, and educating the public and other health care professionals about the field of clinical psychology, we do not agree that changing the discipline's name to psychological physician is a necessary or sufficient means to these ends. We outline the bases for our disagreement with the name change proposal and provide other proposals for reaching the goals set forth by Holden and Levant.     

A role for clinical psychology in health care and policy concerning the physical environment

Some persons adversely react to specific environments, while others are impervious or actually thrive. Medical attention often overlooks such sensitivities to the physical environment. Such sensitivities, including phobias and seasonal affectivity, fall within clinical psychology's purview. A theoretical/clinical approach called the Synchronous Systems Model, which defines and uses individual differences in people and in settings, could serve medical health care and policy. When specific people are matched appropriately with specific treatments within the most propitious settings, cost effectiveness and medical efficacy rise. Such documented accountability could make clinical psychologists central to triage of medical services as well as health care policy in these days of the shrinking health care dollar. The Synchronous Systems Model provides theory, supportive data, and clinical assessment devices to strengthen clinical psychology's role in medical settings.     

A reanalysis of the personal/impersonal distinction in moral psychology research

Greene and colleagues [Greene, J., Sommerville, B. R., Nystrom, L. E., Darley, J. M., & Cohen, J. D. (2001). An fMRI investigation of emotional engagement in moral judgment. Science, 293, 2105-2108.] have revealed an apparent distinction in folk psychology between ‘up close and personal’ and ‘impersonal’ moral dilemmas. Reasoning about these types of dilemmas is purportedly supported by partially dissociable neural systems. However, further investigation of the data supporting this hypothesis indicated that only a small number of stimuli used by Greene et al. are driving the effect originally found. Implications of the apparent distinction initially reported and of other research in the domain of moral psychology are discussed.     

Qualitative research in psychology: Attitudes of psychology students and academic staff

Qualitative research is experiencing a resurgence within the field of psychology. This study aimed to explore the range of attitudes towards qualitative research in psychology held by students and academics, using the model of attitudes by Eagly and Chaiken as a framework. Twenty‐one psychology students and academics were interviewed about their attitudes towards qualitative research. Interviews were transcribed and analysed using thematic analysis. While qualitative research was described as inherent to the psychology profession and useful for generating rich data, some participants felt that this approach was not well respected or considered as legitimate as quantitative methods. Reflecting common misperceptions about qualitative research, participants also expressed concerns that qualitative research was too subjective and had limited generalisability. Furthermore, some participants felt that they lacked the skills and confidence necessary to conduct qualitative research. Large investments in time and resources were identified as barriers to undertaking qualitative research. Identifying attitudes towards qualitative research provides a basis for future work in dispelling myths, promoting attitudinal change and increasing both the use and teaching of qualitative approaches in psychology.