Analyzing aphasia data in a multidimensional symptom space

The utility of single-case vs. group studies has been debated in neuropsychology for many years. The purpose of the present study is to illustrate an alternative approach to group studies of aphasia, in which the same symptom dimensions that are commonly used to assign patients to classical taxonomies (fluency, naming, repetition, and comprehension) are used as independent and continuous predictors in a multivariate design, without assigning patients to syndromes. One hundred twenty-six Italian-speaking patients with aphasia were first classified into seven classic aphasia categories, based on fluency, naming, auditory comprehension, and repetition scales. There were two goals: (1) compare group analyses based on aphasia types with multivariate analyses that sidestep classification and treat aphasic symptoms as continuous variables; (2) present correlation-based outlier analyses that can be used to identify individuals who occupy unusual positions in the multivariate "symptom space." In the service of the first goal, group performance on an external validation measure (the Token Test) was assessed in three steps: analyses of variance based on aphasia type, regressions using the same cut-offs for fluency, naming, comprehension and repetition as independent but dichotomous predictors, and regressions using the same subscales as continuous predictors (with no cut-offs). More variance in Token Test performance was accounted for when symptoms were treated as continuous predictors than with the other two methods, though use of independent but dichotomous predictors accounted for more variance than aphasia taxonomies. Thus, if we by-pass classical taxonomies and treat patients as points in a multidimensional symptom space, better predictions are obtained. Outlier analyses show that group results depend on heterogeneity among patients, which can be used as a search tool to identify potentially interesting dissociations. Hence this multivariate group approach is complementary to and compatible with single-case methods.     

Are employees' ratings of coworkers' organizational citizenship behavior influenced by their own perceptions of organizational justice?'

Partial correlation analysis of questionnaire data from 62 of 65 employees of a Turkish company indicated that employees' own perceptions of organizational justice in terms of distributive, procedural, and interactional justice were related to how they rated their coworkers' organizational citizenship behavior. Specifically, all three two-way interactions between the justice variables were related to organizational citizenship behavior.     

Conflict of interest in biomedical research: a view from Europe

In this paper I address the conflict of interest (CoI) issue from a legal point of view at a European level. We will see that the regulatory framework that exists in Europe does state the need for the independence of ethics committee involved in authorisation of research and clinical trials. We will see that CoI is an element that has to be closely monitored at National and International level. Therefore, Member States and Newly Associated States do have to address CoI in the authorisation process of research and clinical protocols of biomedicine. The opinions here expressed are personal and do not commit the European Commission. An earlier version of this paper was delivered at a Conference on Conflict of Interest and Its Significance in Science and Medicine, 5–6 April, 2002, Warsaw, Poland. The author is a Scientific Officer in the Programme Science and Society dealing with ethics and science (Unit C.3).     

In search of a measure to investigate mental performance among children: Development of the mental speed test

Processing speed is a component of general intelligence and an indicator of learning potential. There is a need for robust measures of mental speed based on contemporary theoretical developments. The current study addressed this need by proposing a mental speed test for children aged 60 to 96 months (5 to 8 years) and examining its psychometric properties. The test included indicators of perceptual speed, memory speed, reasoning speed, and fluency-flexibility speed presented through nonverbal items administered individually using touchscreen tablets. After establishing gender non-bias and concurrent validity with a contemporary intelligence test (i.e., ASIS, r = .59) with 107 children, the next administration included 373 children. Exploratory factor analysis (EFA) with subtest scores revealed a single-factor structure accounting for 45% of the total variance. Additional data from 212 children were used to assess structural validity and gender bias, which showed acceptable goodness of fit, providing evidence of the validity and reliability of the new measure for further use.     

Risk-taking increases under boredom

We examined if boredom is associated with risk-taking. Although this association has frequently been postulated, it has rarely been tested, and the evidence has thus far been rather indirect and speculative. We conducted three studies to test this association more systematically. In Study 1, people high in boredom proneness reported greater risk-taking across financial, ethical, recreational, and health or safety domains. In Study 2, over a series of risky decisions, risk-taking increased in tandem with state boredom. Consistently, in Study 3, people who felt more bored were more likely to choose risky gambles. Furthermore, while dispositional self-control predicted lower risk-taking, state boredom nullified this association, suggesting that elevated risk-taking might be attributed the erosion of self-control under boredom. Our findings establish via direct empirical tests that boredom is associated with making riskier decisions.     

Selective pressures on the once and future contents of ethnic stereotypes: effects of the communicability of traits

It is hypothesized that traits that are most likely to be the subject of social discourse (i.e., most communicable) are most likely to persist in ethnic stereotypes over time and that this effect is moderated by the extent to which an ethnic group is the subject of social discourse. Study 1 yielded communicability ratings of 76 traits. Study 2 tested the relation between a trait's communicability and its presence in stereotypes of 4 Canadian ethnic groups. Study 3 tested the relation between a trait's communicability and its persistence over time in stereotypes of 8 American ethnic groups. Results supported the hypotheses. A communication-based analysis of stereotypes appears helpful in predicting persistence and change in the contents of stereotypes of real groups in the real world.     

Body image satisfaction and anxiety of a Turkish sample of university students with skin diseases

The aim of this study was to evaluate perception of body image and anxiety of 221 university students presenting to the dermatology outpatient clinic with a skin disease and 205 students without skin disease. Analysis of anxiety and body image scores yielded differences by sex and age in both groups. The group with skin disease had lower scores on body image. Acne vulgaris seems to be the most disturbing among the skin diseases, and this was more prominent in younger patients.     

Postgraduate Clinical Psychology Placements in Victoria: The Experience of Students and Supervisors

In a recent study conducted at Swinburne University of Technology, researchers examined the challenges involved in coordinating, undertaking, and supervising clinical psychology placements within Victoria. The aim of the investigation was to develop and improve strategies ensuring the sustainable provision of university‐based postgraduate psychology programmes. Results provide detailed information about the components involved in this multifaceted problem. Findings indicate that those involved in clinical placements within university training programmes in Victoria are experiencing major difficulties and that these difficulties raise serious concerns regarding the future provision of clinical placements within the postgraduate system. This article focuses on student and supervisor experiences and perspectives. Implications are discussed.     

Would you post that picture and let your dad see it? Culture,honor, and Facebook

Honor means “high respect; esteem,” but it has different associations for different cultures. In honor cultures (Turkey), esteem depends on one's own perception of self‐worth and on other people's opinions. In those cultures, honor is easily lost and difficult to regain. In dignity cultures (northern America), esteem mainly depends on the individual and cannot be taken away by others. One way to lose honor in Turkey is through behaviors that may be seen as “potentially improper.” Thus, we expected that posting pictures of such behaviors on Facebook (e.g., at a party; with one's boyfriend/girlfriend) and letting others see them would be less likely in Turkey than in the northern United States. Moreover, we investigated whether honor endorsement was the reason for this difference. We examined participants' posting intentions and actual Facebook behaviors. As expected, Turkish participants were less willing to post and let others (especially their relatives) see their potentially improper pictures compared with northern Americans. Moreover, honor endorsement negatively predicted the willingness to post such pictures only in Turkey, especially for women. This suggests that in honor cultures, the concern for losing honor could be the underlying reason for avoiding social media postings that could be potentially perceived as improper. Copyright © 2015 John Wiley & Sons, Ltd.     

Can the Alevis Speak? The Politics of Representation in Early Writings on Alevism

This study historicizes and contextualizes the contrasting representations of Alevism in the early writings of Stephen van Rensselaer Trowbridge, a Protestant missionary, and Baha Said Bey, a Turkish activist and researcher. Both Trowbridge and Baha Said undertook extensive research on Alevi culture in the early twentieth century. Though their works appear to be “benevolent” endeavors, giving voice to the Alevi subaltern, by first studying the political and cultural backgrounds of Trowbridge and Baha Said, this article exposes the cultural and ideological motivations that influenced their studies. It then focuses on how these political concerns are expressed in representations of Alevism. Given the dearth of postcolonial and critical perspectives on Alevism, investigating the praxis of representation can help trace overtly political concerns beyond their scholarly treatments. Based on Gayatri Spivak's theorization in her essay “Can the Subaltern Speak?,” this paper scrutinizes how these writings negate the agency of Alevis and portray them as waiting for salvation by external proxies – be they Western missionaries or the Turkish government.