The Effects of an Interactive Graphics-Based DSS to Support Problem Structuring

Graphical, interactive, problem-structuring tools were devised and incorporated into a DSS. These tools were based on concepts of structural modeling and motivated by propositions and findings in memory theory and imagery theory. A laboratory study was then conducted to investigate the relationship between decision-maker characteristics and use of the problem-structuring aid. The experiment was designed to determine whether use of the tool to assist in problem formulation led to a better understanding of problem structure. A moderately complex management simulation and its companion DSS were used in the experiment. Eighty-four subjects were divided into two groups: a control group that did not use the Graphical Interactive Structural Modeling Option (GISMO), and an experimental group that did. The results showed a statistically significant effect between cognitive ability and use of GISMO. Field independents (i.e., high cognitive ability) effectively combined GISMO use with image processing skills to understand the structure of the problem domain, but field dependents (i.e., low cognitive ability) were ineffective. There was very little difference in problem understanding in field dependents who used the tool and those who did not.     

The impact of training on the formulation of ill-structured problems

Problem structuring heuristics and creative thinking techniques have been advanced as useful approaches for solving ill-structured problems. Unfortunately, little controlled experimentation has been done to test the effectiveness of these techniques. This paper describes an experiment in which the effects of training in the use of a problem-structuring heuristic and creative thinking on the quality and quantity of problem statements are investigated. The experiment illustrates that such training does have a positive impact on problem formulation quality and quantity.     

Exploring the relationship of leadership skills and knowledge to leader performance

The criterion-related validity of constructed response measures of complex problem-solving skills, social judgment skills, and leader knowledge is examined with respect to two criteria of leader effectiveness: leader achievement and quality of solutions to ill-defined leadership problems. Core aspects of the leader capabilities model are tested using these measures in a series of hierarchical regression analyses. Results indicate that constructed response measures of key leader capabilities account for variance in leader effectiveness and provide initial validation evidence for a central part of the theoretical model. The problem-solving, social judgment and knowledge measures account for significant variance in leadership criteria beyond that accounted for by cognitive abilities, motivations, and personality. Initial evidence also suggests that complex problem-solving skills, social judgment and leader knowledge partially mediate the relationship of cognitive abilities, motivation and personality to leader effectiveness. Implications and generalizability of the results are discussed in light of a related civilian leadership study conducted within the U.S. Department of Defense.     

Presenting Geographic Information: Effects of Data Aggregation,Dispersion, and Users' Spatial Orientation

Geographic information systems (GIS) have taken on an increasingly important role supporting decision making in many organizations. GIS have been used to support a breadth of tasks including oil and mineral exploration, facility location, logistics support, and facilities management decisions. The effectiveness of GIS as a decision support tool comes primarily from the visual display of data in the form of maps. When presenting information as a geographic map, the level of data aggregation potentially affects aspects of task complexity such as information load and the potential for pattern recognition by the user. Other task attributes expected to be related to data aggregation effects include problem size, the degree of data dispersion, and users' spatial orientation skills. We conducted an experiment to study these effects and their interactions. Subjects used a GIS including map-based information characterized by different levels of problem size, data dispersion, and data aggregation. Spatial orientation skill was examined as a covariate in the experimental treatments. The results indicate that all of these geographic information characteristics have significant impacts on decision performance. Moreover, many interactions are present among the factors. We evaluate these interactions in order to derive implications for practice and for future research.     

Propensity for self-development of leadership attributes: Understanding,predicting, and supporting performance of leader self-development

Little systematic research has been reported to advance understanding of the characteristics associated with individuals who initiate self-development activities to grow leadership skills. The purpose of the present research was to examine cognitive, dispositional, and motivational precursors to the propensity to engage in leadership self-development. A second purpose was to examine the role of organizational support on the relationships between self-development propensity and reported self-development activities. Over 400 junior-military leaders participated in a three-stage survey administration designed to test a structural model of leader self-development. Results indicate that a person having individual characteristics related to mastery, work, and career-growth orientations displayed more motivation to perform leader self-development and more skilled at performing instructional and self-regulatory processes. Higher self-development motivation and skill resulted in greater reported self-development activities. Surprisingly, organizational support reduced the magnitude of this relationship. This study concludes with implications for future research on and practice of leader self-development activities.     

On the effectiveness of cognitive feedback from an interface agent

The objective of this study was to determine the impact of task information (TI) provided by an interface agent during the idea evaluation and integration step of the problem formulation stage of the problem solving process. The effectiveness assessment was based on solving diagnostic decision problems in the domain of complex industrial machinery. Ten domain experts participated in this study. Decision support was provided by a case-based reasoning system. Findings suggest that TI provided by the interface agent had no effect on the decision maker's performance, nor on the associated cognitive effort. However, a verbal protocol analysis revealed that the ten subjects used the interface agent to verify their decision processes. The results and their implications are discussed with respect to current findings in the area of decision support systems.     

Limitations of working memory capacity: The cognitive and social consequences

This paper aimed to explore, from the perspective of cognitive psychology, the natural limitations of human cognition that determine our capabilities to deal with information overflow. These limitations are related mainly to the working memory system. This system is conceived to be composed of the storage components, which are responsible for active maintenance, and executive control that supervises the storage units. People differ in their working memory capacities, and because virtually every complex cognitive activity requires the temporal availability of a certain amount of cognitive representations, these differences are predictive of many outcomes. In the area of ‘cold’ cognition, these outcomes include intelligence and verbal reasoning, multitasking, language comprehension and verbal fluency, whereas in the area of ‘hot’ cognition, they include mentalising, stereotyping and self-control. Natural limitations in working memory capacity may be overcome (to some extent) through the training of working memory skills or the application of processing strategies (e.g. task simplification, using external environment as in situated or distributed cognition, changing a code of mental representation).     

Communication and its constraints on the structure of organisations

Control of organisations is one of the principal concerns of management. Day to day control is frequently mainly achieved by oral or verbal communication. It is suggested that loss or distortion of information during its passage through a chain of command can impose a major constraint on the effectiveness of an organisation. An experiment was devised in order to determine the information loss and distortion likely to occur when verbal information is passed through a series of people. It was found necessary to develop a method of coding and classifying verbal and written information before the data could be analysed. Some 21 different types of verbal information ‘bit’ were eventually isolated. It was found that there were some unexpected effects in the information loss process, and that distortions could frequently take place which created an exactly opposite effect to that required. It was also noted that critical loss levels existed, and that the believed ability to act on the information was related to this level. The results are described in the paper and losses and distortions are quantified so that the reliability of the human command system can be evaluated. The losses are then related to the deduced and observed limitations of the size and structure organisations.     

Agency Problems and Airport Security: Quantitative and Qualitative Evidence on the Impact of Security Training

We analyze the issue of agency costs in aviation security by combining results from a quantitative economic model with a qualitative study based on semi‐structured interviews. Our model extends previous principal‐agent models by combining the traditional fixed and varying monetary responses to physical and cognitive effort with nonmonetary welfare and potentially transferable value of employees' own human capital. To provide empirical evidence for the tradeoffs identified in the quantitative model, we have undertaken an extensive interview process with regulators, airport managers, security personnel, and those tasked with training security personnel from an airport operating in a relatively high‐risk state, Turkey. Our results indicate that the effectiveness of additional training depends on the mix of “transferable skills” and “emotional” buy‐in of the security agents. Principals need to identify on which side of a critical tipping point their agents are to ensure that additional training, with attached expectations of the burden of work, aligns the incentives of employees with the principals' own objectives.     

Managerial Influences on Intraorganizational Information Technology Use: A Principal-Agent Model

Our current understanding of information technology (IT) usage does not explain why and how managers can influence organizational members to use a new IT. Drawing on principal-agent research, this paper develops and tests a model of intraorganizational IT usage that addresses this important issue. Managerial incentives and control are examined as important components of managerial influences, which are linked to IT usage via a principal-agent model (PAM). Seven research hypotheses are generated from this model and empirically tested using a laboratory experiment. Results of the study indicate that managers can promote IT usage within organizations by designing appropriate incentives and control structures such as monitoring and multiple-period contracts. However, the effectiveness of these structures will depend on potential users' ability to distinguish between various forms of incentives and control.     

Voices and values: Linking values with participation in OR/MS in public policy making

It is now widely accepted that public policy development requires both an appreciation of public values and an ability to involve insights from local people. Operational research (OR) has made some contributions to public policy development, and there has been a call to use problem-structuring methods (PSM) in this environment. This growing need for greater use of OR/management science (MS) in policy making is due to its ability to work with insights that are sometimes hard to pin down. This paper presents some research about values and local people's voices in public policy making, which the authors believe present a challenge to OR/MS and to the use of PSM. The paper will describe a framework for understanding values and exploring insights into including local voices in policy making using PSMs. Key to the framework is in the emphasis on differences, rather than similarities, in value priorities. A case study in which local people as well as decisions makers and politicians were engaged in a process to decide the future of a local hospital will be described.     

Using Concurrent Verbal Reports to Examine Data Analyst Verbal Behavior

Abstract

Evidence concerning effects of graphed data on the verbal behavior of data analysts was reviewed and revealed the fact that no verbal protocol analyses of this behavior appears in the OBM literature. A task analysis of data analysts' verbal behavior was conducted, verbal responses of two expert and two novice data analysts were collected as they viewed time-series data one data point at a time from three data sets, and these data were subjected to protocol analyses. Results were the following: (1) experienced data analysts made considerably more frequent references to data points in addition to the most recently presented data point for all three data sets than did novices, (2) experienced data analysts took more time to complete the task than did novice analysts, and (3) experienced data analysts were somewhat more accurate at identifying onset (location in time) of interventions. These results were discussed in terms of their implications for future research concerning analysis and development of visual inspection skills among data analysts. It was concluded that there exists a need to develop data sets or tasks that more reliably discriminate among expert and novice performances if verbal protocol methodology is to be fully exploited by OBM researchers.     

Towards more sustainable debt attitudes and behaviors: the importance of basic economic skills

This research builds on the idea that debt-related financial distress faced by an individual results primarily from the inability to understand and apply fundamental economic concepts to debt decisions rather than from a lack of highly specific financial knowledge. This notion offers a potential explanation for why current financial literacy programs, which generally focus on the latter aspect, are considered to be mostly ineffective. We hypothesize that the understanding of fundamental economic concepts plays an essential role in explaining debt attitudes and behaviors. To test this hypothesis, we empirically examine how basic economic skills relate to these traits among German adolescents while controlling for their levels of financial literacy. Our results indicate that basic economic skills beneficially relate to both individual debt attitudes and behaviors. In contrast, we do not find a significant impact of financial literacy. Therefore, a stronger consideration of fundamental economic concepts in financial literacy programs might be a fruitful way to increase their effectiveness.     

Job resources and emotional exhaustion: The mediating role of learning opportunities

The Job Demands-Resources model predicts that job demands increase and job resources decrease emotional exhaustion in employees. In this study, we investigated one possible mechanism for this, in order to provide a deeper insight into the role of job resources in this energy-depletion process. We assumed that job resources (autonomy and task variety) reduce emotional exhaustion through the promotion of opportunities for personal growth and development, especially workplace learning. Moreover, we expected that job demands (workload, cognitive and emotional demands) would be positively related to work-related learning opportunities. Our research model was tested in a large and heterogeneous sample out of the Dutch working population (N = 4589), following a cross-validation procedure. Multi-group structural equation modelling revealed that autonomy and task variety promoted learning opportunities, which in turn partially mediated between these job resources and emotional exhaustion. With respect to job demands, our study showed mixed results: cognitive demands promoted learning opportunities, workload frustrated such opportunities, and emotional demands were not significantly related to learning opportunities. Our results contribute to a better understanding of the interplay between job demands, job resources and learning opportunities in the energy-depletion process, and support the need for the promotion of learning opportunities in the workplace.     

IT人员业务能力与技术能力的互补性对企业竞争优势的影响

以资源基础观为理论指导,研究IT人员的技术能力与业务能力以及二者的协同效应对企业竞争优势的影响。在已有研究成果的基础上,构建了企业IT人员能力及其互补性与企业经营绩效关联的概念模型,通过对国内300家大中型企业的问卷调查和统计检验,验证企业IT人员的技术能力和业务能力与企业绩效都有着显著的正相关关系,而且这2种能力之间也存在较强的互补性。研究结论显示,技术能力是IT部门人员区别于其他部门的根本,业务能力使IT人员能够更好地理解企业业务,进而充分发挥IT系统的战略作用,产生的协同效应能够进一步提升企业的经营绩效。     

The Effects of Evaluating Video Examples of Staffs' Own Versus Others' Performance on Discrete-Trial Training Skills in a Human Service Setting

Many studies have been conducted evaluating the use of feedback in staff training in organizational settings. Central to this literature has been the use of a variety of forms of feedback, including videotaped feedback. A distinction is outlined between video modeling and a variety of possible video feedback procedures. Previous studies have indicated a possible positive training effect on staff skills from simply being exposed to relevant videotaped performances of those skills or as a result of evaluating video modeled performances. This study evaluated the effectiveness for training teaching skills of having staff evaluate videotaped teaching skills as performed by themselves versus others. The current study results replicate earlier research on the effectiveness of evaluating video models as a training method and do not suggest a difference between observing oneself as opposed to observing someone else. Future research suggestions for the general use of video in training are provided.     

The relationship between supply chain manager capabilities and performance: empirical evidence

This study seeks to answer the question how supply chain managers’ capabilities impact individual and firm performance. Organisations have begun to recognise the importance of their supply chain and the necessity for qualified supply chain managers. Therefore, there is a need for further research on the impact of these capabilities on individual and firm performance. Sustained performance of a firm depends on dynamic capabilities and it allows firms to align and adapt strategies according to the volatile external environment. Using dynamic capabilities theory, the supply chain manager capabilities model was developed as a way for supply chain managers to effectively use their skills and past experiences to improve their own and firm’s performance. Primary data was collected through a survey distributed to supply chain management professionals. The results strongly support the relationship between technology and soft skills with supply chain manager capabilities. Interestingly, our study identifies sequential relationship amongst the three constructs such as capabilities, individual and firm performance. Capabilities are related with individual performance whereas individual performance is related with the firm performance. However, our findings revealed that there is no direct relationship between supply chain manager capabilities and firm performance.     

A Modeling Framework for Supply Chain Simulation: Opportunities for Improved Decision Making*

Owing to its inherent modeling flexibility, simulation is often regarded as the proper means for supporting decision making on supply chain design. The ultimate success of supply chain simulation, however, is determined by a combination of the analyst's skills, the chain members' involvement, and the modeling capabilities of the simulation tool. This combination should provide the basis for a realistic simulation model, which is both transparent and complete. The need for transparency is especially strong for supply chains as they involve (semi)autonomous parties each having their own objectives. Mutual trust and model effectiveness are strongly influenced by the degree of completeness of each party's insight into the key decision variables. Ideally, visual interactive simulation models present an important communicative means for realizing the required overview and insight. Unfortunately, most models strongly focus on physical transactions, leaving key decision variables implicit for some or all of the parties involved. This especially applies to control structures, that is, the managers or systems responsible for control, their activities and their mutual attuning of these activities. Control elements are, for example, dispersed over the model, are not visualized, or form part of the time‐indexed scheduling of events. In this article, we propose an alternative approach that explicitly addresses the modeling of control structures. First, we will conduct a literature survey with the aim of listing simulation model qualities essential for supporting successful decision making on supply chain design. Next, we use this insight to define an object‐oriented modeling framework that facilitates supply chain simulation in a more realistic manner. This framework is meant to contribute to improved decision making in terms of recognizing and understanding opportunities for improved supply chain design. Finally, the use of the framework is illustrated by a case example concerning a supply chain for chilled salads.     

Role of Negative Emotion in Communication about CO2 Risks

This article describes how the effectiveness of risk communication is determined by the interaction between emotional and informative elements. An experiment is described that examined the role of negative emotion in communication about CO₂ risks. This experiment was based on the elaboration likelihood model and the related heuristic systematic model of attitude formation. The results indicated that inducing fear of CO₂ risks leads to systematic processing of information about energy conservation as a risk-reducing strategy. In turn, this results in more favorable attitudes toward energy conservation if strong arguments are provided. Individual differences in concern seem to have similar effects.     

The Use of Visual Prompts to Increase the Cleanliness of Restrooms on a College Campus

Prompting procedures have been used in community settings to change many public health related behaviors. The current study took place on a college campus and used a multiple baseline across settings design to evaluate the effectiveness of visual prompts to decrease urinal splatter on men's restroom floors. Results indicate that prompts were immediately effective, and effectiveness was maintained during follow-up four months later. Findings suggest research in community settings should investigate long-term maintenance of prompts to increase the generalization of behavior analytic interventions.