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51.
A shift toward a psychophysiological view of pain appears to be gaining ground as the cost of health care continues to increase. Billions of dollars are expended in America due to persistent pain. Psychotherapist involvement in the treatment of pain may be an effective form of intervention. People injured within and outside the bounds of compensation systems may display different pain patterns. Variables affecting pain, alternative treatment methods and needs, and return to gainful work are discussed.  相似文献   
52.
This paper examines and critiques the manner in which one strand of attribution theory has addressed the relationship between role performances and person perception. An interactionist approach is formulated as an alternative, and an experiment is designed to test its viability. The experiment supports our hypothesis that the informational value of “in-role” performances is similar to the informational value of “out-of-role” performances, and that neither type of performance is consistently more informative than the other. Further, it is suggested that the informational value of role performances is not adequately explained by the in-role/out-of-role dichotomy. The interactionist conception of role, combined with a notion of informal role types, provides a more accurate understanding of role performance and person perception.  相似文献   
53.
Obsessive-compulsive disorder (OCD) is a chronic, impairing condition with an estimated lifetime prevalence in adults of 2.5%. Controlled treatment trials have demonstrated that cognitive-behavioral therapy (CBT) is an effective intervention for OCD. However, many individuals diagnosed with OCD do not receive appropriate, empirically validated interventions, perhaps due to limited knowledge of CBT among mental health practitioners. This article provides a review of CBT for OCD. Issues related to treatment delivery and assessment are presented and highlighted by an individual example.  相似文献   
54.
Presidential Coattails in 1972   总被引:1,自引:0,他引:1  
Because Richard Nixon's overwhelming victory in the 1972 presidentialelection was not accompanied by any significant increase inRepublican representation in Congress, it has been assumed thathis coattails were exceedingly short. However, analysis of severalkinds of evidence suggests that such an assumption is prematureand that Nixon's pulling power has been underestimated. An explanationof the failure of Republican gains to materialize as congressionalseats may be found in the competitive disadvantages sufferedby Republicans in a period of increasingly safe seats.  相似文献   
55.
Probabilistic risk analyses often construct multistage chance trees to estimate the joint probability of compound events. If random measurement error is associated with some or all of the estimates, we show that resulting estimates of joint probability may be highly skewed. Joint probability estimates based on the analysis of multistage chance trees are more likely than not to be below the true probability of adverse events, but will sometimes substantially overestimate them. In contexts such as insurance markets for environmental risks, skewed distributions of risk estimates amplify the "winner's curse" so that the estimated risk premium for low-probability events is likely to be lower than the normative value. Skewness may result even in unbiased estimators of expected value from simple lotteries, if measurement error is associated with both the probability and pay-off terms. Further, skewness may occur even if the error associated with these two estimates is symmetrically distributed. Under certain circumstances, skewed estimates of expected value may result in risk-neutral decisionmakers exhibiting a tendency to choose a certainty equivalent over a lottery of equal expected value, or vice versa. We show that when distributions of estimates of expected value are, positively skewed, under certain circumstances it will be optimal to choose lotteries with nominal values lower than the value of apparently superior certainty equivalents. Extending the previous work of Goodman (1960), we provide an exact formula for the skewness of products.  相似文献   
56.
This study explored whether career orientation is stable and whether predominant types exist by looking at the differences in specific demographic variables (age, years of work experience, employment level, gender, type of job and education level). These were examined through the framework of career success orientation in a Korean wireless communications company. The findings show that career success orientations were not the same by age, length of work experience, and employment level, and dominant career success orientations were based only on education level. The results imply that there are either generation differences or changes in career orientation and that theoretical re-investigation is needed in researching dominant career orientation by gender.  相似文献   
57.
This study investigated the roles of three types of conflict at work – task, relationship and non-task organizational – in predicting employee strain. These conflict types refer to disputes over issues that are, respectively, work-task specific, driven by emotionally charged interpersonal animosity or rooted in more broad organizationally relevant issues. Findings from a sample of 260 working adults from various organizations in the United States supported the notion that the three types of conflict function as social stressors and are related to a variety of psychological, behavioural and physical strains. They extend previous research based primarily on relationship conflict. Non-task organizational conflict emerged as a key predictor across strain criteria, thus highlighting the importance of including a more complete conceptualization of the conflict construct in social stress research. The results for task conflict are at variance with findings that it can be beneficial, and suggest that its negative relationship with well-being may be due to its co-occurrence with the other forms of conflict. These findings provide support for an expanded typology of conflict.  相似文献   
58.
As developing excellent global leaders should be an urgent priority of companies in the global business world, there has been considerable research in this area. Despite this, there is limited research on the systematic global leadership competency structure reflecting both on its levels and dimensions and on specific competencies. The purpose of this article is to create a theory-based integrative framework that can be used to identify the competencies comprising global leadership. To accomplish this purpose, an integrative literature review was employed on competency theory and global leadership, resulting in the development of an integrative framework for global leadership competency. The framework, with three levels and four dimensions, established in this article contributes to corporations in providing a means of developing company-specific models of global leadership competency. Also discussed are implications for future human resource development research and theory building.  相似文献   
59.
During the last decade, a great deal of news media attention has focused on informing the American public about scientific findings on global warming (GW). Has learning this sort of information led the American public to become more concerned about GW? Using data from two surveys of nationally representative samples of American adults, this article shows that the relation between self‐reported knowledge and concern about GW is more complex than what previous research has suggested. Among people who trust scientists to provide reliable information about the environment and among Democrats and Independents, increased knowledge has been associated with increased concern. But among people who are skeptical about scientists and among Republicans more knowledge was generally not associated with greater concern. The association of knowledge with concern among Democrats and Independents who trust scientists was mediated by perceptions of consensus among scientists about GW's existence and by perceptions that humans are a principal cause of GW. Moreover, additional analyses of panel survey data produced findings consistent with the notion that more knowledge yields more concern among Democrats and Independents, but not among Republicans. Thus, when studying the relation of knowledge and concern, it is important to take into account the content of the information that different types of people acquire and choose to rely upon.  相似文献   
60.
This paper applies some general concepts in decision theory to a linear panel data model. A simple version of the model is an autoregression with a separate intercept for each unit in the cross section, with errors that are independent and identically distributed with a normal distribution. There is a parameter of interest γ and a nuisance parameter τ, a N×K matrix, where N is the cross‐section sample size. The focus is on dealing with the incidental parameters problem created by a potentially high‐dimension nuisance parameter. We adopt a “fixed‐effects” approach that seeks to protect against any sequence of incidental parameters. We transform τ to (δ, ρ, ω), where δ is a J×K matrix of coefficients from the least‐squares projection of τ on a N×J matrix x of strictly exogenous variables, ρ is a K×K symmetric, positive semidefinite matrix obtained from the residual sums of squares and cross‐products in the projection of τ on x, and ω is a (NJ) ×K matrix whose columns are orthogonal and have unit length. The model is invariant under the actions of a group on the sample space and the parameter space, and we find a maximal invariant statistic. The distribution of the maximal invariant statistic does not depend upon ω. There is a unique invariant distribution for ω. We use this invariant distribution as a prior distribution to obtain an integrated likelihood function. It depends upon the observation only through the maximal invariant statistic. We use the maximal invariant statistic to construct a marginal likelihood function, so we can eliminate ω by integration with respect to the invariant prior distribution or by working with the marginal likelihood function. The two approaches coincide. Decision rules based on the invariant distribution for ω have a minimax property. Given a loss function that does not depend upon ω and given a prior distribution for (γ, δ, ρ), we show how to minimize the average—with respect to the prior distribution for (γ, δ, ρ)—of the maximum risk, where the maximum is with respect to ω. There is a family of prior distributions for (δ, ρ) that leads to a simple closed form for the integrated likelihood function. This integrated likelihood function coincides with the likelihood function for a normal, correlated random‐effects model. Under random sampling, the corresponding quasi maximum likelihood estimator is consistent for γ as N→∞, with a standard limiting distribution. The limit results do not require normality or homoskedasticity (conditional on x) assumptions.  相似文献   
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