Psychological resilience and dysfunction among hospitalized survivors of the SARS epidemic in Hong Kong: a latent class approach

OBJECTIVE: To examine trajectories of psychological functioning using latent class analysis on a sample of hospitalized survivors of the 2003 severe acute respiratory syndrome (SARS) epidemic in Hong Kong. DESIGN: A longitudinal study of 997 survivors, recruited from among 1,331 individuals hospitalized for SARS, were interviewed at 6, 12, and 18 months after hospitalization. MAIN OUTCOME MEASURES: Psychological and physical functioning at each time point was measured using the 12-item Medical Outcome Study Short-Form Health Survey (SF-12). RESULTS: Four latent classes were identified--chronic dysfunction, delayed dysfunction, recovery, and resilience. All groups had better physical health than the chronic group. Resilient and recovered individuals had greater social support and less SARS-related worry, and resilient individuals were more likely to be male. The resilient group also had greater social support than the delayed group and better physical functioning than the recovered group. CONCLUSION: This study demonstrated that longitudinal outcome trajectories following a major health-threat event in an Asian sample bear close resemblance to prototypical trajectories observed in trauma studies using Western samples. Unique predictors of the trajectories included factors observed in previous studies, such as social support, as well as factors of particular relevance to a major disease outbreak, such as SARS-related worry.     

Expectations and beyond: The nexus of AI instrumentality and brand credibility in voice assistant retention using extended expectation-confirmation model

AI-based voice assistants (AIVA) are capable of interpreting human speech and responding with useful information, aiding with tasks, and controlling other devices. The usage of these AIVAs has grown significantly worldwide. Despite this growth, studies on user behavior related to continued usage intention of AIVAs and effects on the long-term commercial sustainability of brands, remain low. What is less understood is the potential of AI instrumentality attributes and brand credibility components in provoking shifts in post-use behavior of AIVAs. This study proposes a model which expands on the Expectation-Confirmation Model for user continuance behavior of AIVAs, by integrating user's technology related traits, AI instrumentality attributes and brand credibility. To verify the research hypotheses, the study employed partial least square—structural equation modelling, based on 281 validated responses of a survey. This study highlights the significance of Optimism, Innovativeness, and Discomfort for post-adoption confirmation. Higher post-adoption confirmation is strongly associated with perceived intelligence, anthropomorphism, information quality, and system quality. Anthropomorphism and information quality are key factors for brand expertise, while anthropomorphism and system quality are significant for brand trustworthiness. The study confirms that brand expertise and trustworthiness lead to post-use satisfaction and use continuance intention. Understanding the antecedents of satisfaction and continuance intention extends the existing literature on AIVAs and provides valuable insights for academics and practitioners alike. Some implications for researchers and managers are discussed.     

Job Conditions and Wellness/Health Outcomes in Dutch Secondary School Teachers

The aim of the present study is to compare the work situation of Dutch secondary school teachers to job conditions of European teachers and to test the Job Demand-Control-Social Support model (JDCS model, Karasek and Theorell, <citeref rid="bib24">1990</citeref>) on burnout, job satisfaction and somatic symptoms. The Dutch data (N = 304) were gathered in seven secondary schools from across the country. The remaining European group consisted of 1878 upper secondary school teachers originating from 10 countries. Additive and interactive effects in the JDCS model could be identified for emotional exhaustion only. Furthermore, a curvilinear (U-shaped) relationship was found between control and emotional exhaustion. In addition to the JDCS model, the contribution of coping in the explanation of the outcomes was tested. Attempts have been made to deal with criticisms, which are frequently leveled at the implementation of the JDCS model. Dutch teachers do not differ on job conditions from the European sample except for two working conditions where the Dutch indicate less physical exertion and environmental risks than the European reference sample. The Dutch report lower levels of coping than the reference group, they are more depersonalised and are less satisfied than teachers of the European reference group. On the other hand, the Dutch teachers had fewer somatic complaints and reported higher levels of personal accomplishment than their European colleagues.     

Which modality is best for presenting navigation instructions?

Three experiments involved college students receiving and following instructions of various lengths for navigating in a three-dimensional space displayed on a computer screen. The purpose was to evaluate which is the best modality for presenting navigation instructions so that they can be executed successfully. Single modalities (read, hear, and see) were considered along with dual modalities presented simultaneously or successively. It was found that when there were differences between single modalities, generally execution accuracy was best for see and worst for read. Information presented in two modalities did not yield better accuracy than information presented twice in a single modality. Also, the ordering of modalities depended on the extent of practice. Thus, presentation modality does not have a consistently large effect on receiving and following navigation instructions. Repetition and the amount of practice are much more important variables than is presentation modality in determining how well navigation instructions are followed.     

I don't believe but I pray: spirituality,instrumentality, or paranormal belief?

These three studies are among the first to systematically compare five Chinese religious groups on intrinsic (spiritual) and extrinsic (instrumental and paranormal) orientation. In Study 1, a Chinese version of the Index of Core Spiritual Experiences was developed. In Studies 2 and 3, spirituality and religious involvement was found to be greatest among Christians, followed in order by Buddhists, Taoists, traditional nones, and other nones. An instrumental purpose for religious activities and paranormal belief was found to be highest among Taoists, followed in order by Buddhists, traditional nones, other nones, and Christians. The results are consistent with the conclusion that Christianity offers the least support for an extrinsic religious orientation and the most support for an intrinsic religious orientation.     

Cultural Stereotypes and the Self: A Closer Examination of Implicit Self-Stereotyping

Recent research and theory on implicit self-stereotyping suggests that individuals nonconsciously incorporate stereotypes about their social groups into the self-concept; however, evidence as to whether this holds true for negative stereotypes remains limited. Using a subliminal priming measure, the current research found that women (Experiment 1) and White Americans (Experiment 2) implicitly associated the self with in-group stereotypic traits but not out-group stereotypic traits. Of importance, both groups implicitly self-stereotyped on negative in-group traits to a similar extent as they did on positive in-group traits. Moreover, exploratory analysis showed that the degree to which White Americans associated positive, but not negative, in-group stereotypes with the self was related to higher self-esteem. Implications of implicit self-stereotyping on self-esteem and stereotype-consistent behavior are discussed.     

Cognitive and neural determinants of response strategy in the dual-solution plus-maze task

Response strategy in the dual-solution plus maze is regarded as a form of stimulus-response learning. In this study, by using an outcome devaluation procedure, we show that it can be based on both action-outcome and stimulus-response habit learning, depending on the amount of training that the animals receive. Furthermore, we show that deactivation of the dorso-medial and the dorso-lateral striatum with Botulinum neurotoxin A, mimicked or abolished, respectively, the effects of practice on the sensitivity of the response strategy to outcome devaluation. These findings have relevant implications for the understanding of the learning mechanisms underlying different overt behaviors in this widely used maze task.     

A randomized experiment comparing random and cutoff-based assignment

In this article, we review past studies comparing randomized experiments to regression discontinuity designs, mostly finding similar results, but with significant exceptions. The latter might be due to potential confounds of study characteristics with assignment method or with failure to estimate the same parameter over methods. In this study, we correct the problems by randomly assigning 588 participants to be in a randomized experiment or a regression discontinuity design in which they are otherwise treated identically, comparing results estimating both the same and different parameters. Analysis includes parametric, semiparametric, and nonparametric methods of modeling nonlinearities. Results suggest that estimates from regression discontinuity designs approximate the results of randomized experiments reasonably well but also raise the issue of what constitutes agreement between the 2 estimates.