Classroom ethnic diversity,teacher support,and peer victimization: Evidence from four European countries

We investigated how classroom ethnic diversity is associated with peer victimization, effects of ethnic minority/majority status, and if individual teacher support can buffer potentially negative effects of ethnic diversity. Using two theoretical perspectives (balance of power, ethnic competition), we hypothesized that (1) victimization is more prevalent at intermediate ethnic diversity and less prevalent at lower and higher ethnic diversity, (2) this curvilinear link is stronger for ethnic majority than minority students, and (3) peer victimization at intermediate levels of ethnic diversity is lower when teacher support is high. We conducted multilevel analyses based on the first wave of the Children of Immigrants Longitudinal Survey in Four European Countries (CILS4EU). The analytical sample included 17,882 students, nested in 882 classrooms. Although our hypotheses received no support, the findings showed that diversity was linked to less victimization for ethnic minority student. Teacher support was linked to less victimization for ethnic minority students at every level of classroom diversity but especially when diversity was low and to less victimization for ethnic majority students in classrooms with intermediate to high ethnic diversity. We discuss our findings in light the theoretical approaches and underscore the role of teachers as a protective resource.     

The father-daughter dance: the relationship between father-daughter relationship quality and daughters' stress response

The goal of the study was to determine whether father-daughter relationship quality is related to activity of the hypothalamic-pituitary-adrenal (HPA) axis (salivary cortisol) and autonomic nervous system (salivary alpha-amylase, sAA) in late adolescence-emerging adulthood during peer interactions. In the 1st study, reported father-daughter relationships characterized by rejection, chaos, and coercion had lower morning cortisol levels and were temperamentally more sensitive to emotional changes. In the 2nd study, young women who reported father-daughter relationships characterized by warmth, autonomy, support, and structure had lower pretask cortisol levels, and they had attenuated cortisol responses to problem discussion with a friend. In contrast, those who reported father-daughter relationships characterized by rejection, chaos, and coercion had higher pretask cortisol levels, had elevated cortisol in response to problem discussion with a friend, and were more likely to self-disclose about psychosocial stressors. No differences were observed between reported father-daughter relationship quality and sAA levels or task-related reactivity. The findings suggest that father-daughter interactions potentially influence both social cognition and HPA reactivity to developmentally salient stressors in young women.     

How Social Dominance Orientation Affects Union Participation: The Role of Union Identification and Perceived Union Instrumentality

Bridging social dominance theory and labour studies, this field study investigated the mechanisms underpinning the relationship between rejection of group‐based domination and participation in union activities. Respondents (N = 135) were members of a public sector union in California, that is, a hierarchy‐attenuating institution. Results revealed that union identification mediated the negative relationship between social dominance orientation and active union participation. Moreover, the mediational effect of union identification was moderated by perceived union instrumentality (i.e. outcome‐ and process‐based benefits afforded by the union), indicating that the relationship between union identification and participation was stronger among those union members who consider that the union affects workplace justice. The findings reveal the importance of both identity‐based and instrumental motivations underlying union participation. The novelty of applying social dominance theory to union behaviour is underscored. Copyright © 2012 John Wiley & Sons, Ltd.     

Age Differences in Processes Underlying Hindsight Bias: A Life-Span Study

Hindsight bias is the tendency to overestimate one’s prior knowledge of a fact or event after learning the actual fact. Recent research has suggested that age-related differences in hindsight bias may be based on age-related differences in inhibitory control. We tested whether this explanation held for 3 cognitive processes assumed to underlie hindsight bias: recollection bias, reconstruction bias, and the tendency to adopt newly acquired knowledge as old. We performed a typical hindsight-bias study with 9-year-olds, 12-year-olds, young adults, and older adults. Participants first gave numerical judgments to difficult almanac questions. They later received the correct judgments for some of the questions while trying to recall their own earlier judgments. To experimentally test the impact of inhibitory control, the correct judgment was presented either in a weak or in a strong manner that was difficult to ignore. Hindsight bias was larger in the strong condition than in the weak condition and followed a U-shaped life-span pattern with young adults showing the least hindsight bias in line with an inhibitory-control explanation. Yet, the mixture of underlying processes differed considerably between age groups, so inhibitory control did not suffice as a sole explanation of age differences.     

Enter the matrix: How to analyze the structure of behavior

Several methods are available for analyzing different aspects of behavioral transition matrices, but a comprehensive framework for their use is lacking. We analyzed parasitoid foraging behavior in environments with different plant species compositions. The resulting complex data sets were analyzed using the following stepwise procedure. We detected abrupt changes in the event log files of parasitoids, using a maximum likelihood method. This served as a criterion for splitting the event log files into two parts. For both parts, Mantel’s test was used to detect differences between first-order transition matrices, whereas an iterative proportional fitting method was used to find behavioral flows that deviated from random transitions. In addition, hidden repetitive sequences were detected in the transition matrices on the basis of their relative timing, using Theme. We discuss the results for the example from a biological context and the comprehensive use of the different methods. We stress the importance of such a combined stepwise analysis for detecting differences in some parts of event log files.     

Stimulus-based lexical distinctiveness as a general word-recognition mechanism

Word recognition is generally assumed to be achieved via competition in the mental lexicon between phonetically similar word forms. However, this process has so far been examined only in the context of auditory phonetic similarity. In the present study, we investigated whether the influence of word-form similarity on word recognition holds in the visual modality and with the patterns of visual phonetic similarity. Deaf and hearing participants identified isolated spoken words presented visually on a video monitor. On the basis of computational modeling of the lexicon from visual confusion matrices of visual speech syllables, words were chosen to vary in visual phonetic distinctiveness, ranging from visually unambiguous (lexical equivalence class [LEC] size of 1) to highly confusable (LEC size greater than 10). Identification accuracy was found to be highly related to the word LEC size and frequency of occurrence in English. Deaf and hearing participants did not differ in their sensitivity to word LEC size and frequency. The results indicate that visual spoken word recognition shows strong similarities with its auditory counterpart in that the same dependencies on lexical similarity and word frequency are found to influence visual speech recognition accuracy. In particular, the results suggest that stimulus-based lexical distinctiveness is a valid construct to describe the underlying machinery of both visual and auditory spoken word recognition.     

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Authors Index

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Involuntary vocalisations and a complex hyperkinetic movement disorder following left side thalamic haemorrhage

A variety of involuntary speech phenomena as for example palilalia have been described as consequences of neurological disorders. Palilalia is the involuntary repetition of syllabels, words and phrases in ongoing speech. We describe a 73 year old woman who suffered from a hypertensive thalamic haemorrhage. MRI revealed that the lesion was predominantly located within the pulvinar, extending to the lateroposterior thalamic nuclei and to the pretectal area with possible involvement of the medial geniculate body. Few months after the event she developed involuntary vocalisations with whole words and meaningless syllables being rapidly reiterated. In contrast to typical palilalia these vocalisations were not meaningfully related to the ongoing speech of the patient. In addition, the patient developed a complex hyperkinetic movement disorder with right-sided painful hemidystonia and bilateral clonic jerks and a right-sided postural tremor.