Parameter identification in multinomial processing tree models

Multinomial processing tree models form a popular class of statistical models for categorical data that have applications in various areas of psychological research. As in all statistical models, establishing which parameters are identified is necessary for model inference and selection on the basis of the likelihood function, and for the interpretation of the results. The required calculations to establish global identification can become intractable in complex models. We show how to establish local identification in multinomial processing tree models, based on formal methods independently proposed by Catchpole and Morgan (1997) and by Bekker, Merckens, and Wansbeek (1994). This approach is illustrated with multinomial processing tree models for the source-monitoring paradigm in memory research.     

RIASEC interest and confidence cutoff scores: Implications for career counseling

One strategy commonly used to simplify the joint interpretation of interest and confidence inventories is the use of cutoff scores to classify individuals dichotomously as having high or low levels of confidence and interest, respectively. The present study examined the adequacy of cutoff scores currently recommended for the joint interpretation of the Strong Interest Inventory (SII: Donnay, Morris, Schaubhut, & Thompson, 2005) and the Skills Confidence Inventory (SCI: [Betz, Borgen et al., 1996] and [Betz et al., 2005]). Cutoff score criteria were evaluated based on a sample of college students and employed adults (n = 1000), and cross-validated with a second sample of college students (n = 1, 149) who completed an experimental measure of RIASEC interests and confidence. Results were interpreted in the context of social cognitive career theory (Lent, Brown, & Hackett, 1994) by testing predictions regarding the relative frequency of individuals with either matched or mismatched levels of interest and confidence.     

Paying attention to each other. An essay on the transnational intersections of industrial economy,subjectivity, and governance in East Germany's social-psychological training

This article examines a little-known chapter both in the history of socialist labor relations and the history of psychology: Social Psychological Training (SPT) for industrial leaders in the German Democratic Republic (GDR). Based on previously untapped archival sources, it uncovers the transnational genesis of SPT and its intricate relationships with Western “therapeutic culture” of the 1970s. Governmental perspectives are addressed, as well as the level of individual appropriation of SPT and possible unintended side effects of techniques that were drawn from the social psychological and therapeutical fields. This case study helps to explore the functions of psychological expertise in authoritarian political contexts, as well as the polyvalence of group methods of change, the effects of which could turn out repressive as well as liberating on both sides of the Iron Curtain. The history of SPT solicits a polycentric view on therapeutic culture, capturing its diverse manifestations and interconnections between different societies and political economies.     

From Gaming to Hating: Extreme-Right Ideological Indoctrination and Mobilization for Violence of Children on Online Gaming Platforms

As a consequence of numerous extreme-right terror attacks in which the perpetrators posted their manifestos and attack life streams on online platforms adjacent to the video gaming community, as well as radicalized within that environment to a significant degree (e.g., Christchurch, New Zealand; Halle, Germany), increasing scholarly and policymaker interest is focusing on far-right radicalization and recruitment within online video game environments. Yet little empirical insights exist about the specific engagement between right-wing extremists and their potential recruits on these platforms. This study presents findings from a qualitative exploration of German police-investigation files for two children who radicalized on gaming platforms to become involved in extreme-right criminal behavior, including the plotting of a terrorist attack. The study demonstrates the importance of online and offline factor interaction, especially regarding the role of familiar criminogenic factors, as well as the social–emotional bonding between potential recruits and extremist gamers created through shared gaming experiences that lead to high-intensity extremist radicalization aimed at offline behavioral changes. The study did not find evidence for strategic organizational far-right recruitment campaigns, but rather multidirectional social-networking processes which were also initiated by the potential recruits.     

Beziehung und Exposition

In the treatment of anxiety disorders both psychodynamic and behavioral therapeutic methods have proved successful. Linking the two methods in one treatment is usually avoided by therapists, although there is evidence for using such an approach. There is a lack of a regulatory framework for the integration of the various procedures. Taking anxiety treatment as an example, a contribution to such a regulatory framework is developed: the use of exposure (as a cognitive behavioral element) and the examination of the transference aspect of the therapeutic relationship by the therapist (as a psychodynamic element) are systematically placed in relation to each other, whereby the understanding of the therapeutic process is deepened.     

Do alerting signals increase the size of the attentional focus?

Previous research has shown that the presentation of an auditory alerting signal before a visual target increases the interference from flanking distractors. Recently, it has been suggested that this increase in interference may be due to an expansion of the spatial focus of attention. In five experiments, this hypothesis was tested by using a probe technique dedicated to measuring variations in the size of the attentional focus: In the majority of trials, participants performed a letter discrimination task in which their attention was focused on a central target letter. In a randomly intermixed probe task, the size of the attentional focus was measured by letting participants respond to a probe occurring at varying positions. In all experiments, reaction time (RT) to the probe increased from the most central to more lateral probe positions. This V-shaped probe-RT function, however, was not flattened by the presentation of an alerting signal. Overall, this pattern of results is inconsistent with the hypothesis that alerting signals increase the attentional focus. Instead, it is consistent with nonspatial accounts that attribute the increase in interference to an alerting effect on perceptual processing, which then leads to a detrimental effect at the level of response selection.     

Being a Foreigner in Philosophy: A Taxonomy

The question of diversity, both with regard to the demographic profile of philosophers as well as the content of philosophical inquiry, has received much attention in recent years. One figure that has gone relatively unnoticed is that of the foreigner. To the extent that philosophers have taken the foreigner as their object of inquiry, they have focused largely on challenges nonnative speakers of English face in a profession conducted predominantly in English. Yet an understanding of the foreigner in terms of the nonnative speaker does not exhaust the conceptual space of the foreigner. This article provides a more nuanced conceptual apparatus that allows for a more precise identification and discussion of other ways in which one can be a foreigner in philosophy. I develop a taxonomy of different conceptions of the foreigner, namely the linguistic, material, cultural, and epistemic foreigner; I discuss the different and specific challenges they face; and I show how foreigners enrich philosophical practice.     

A validation of eye movements as a measure of elementary school children's developing number sense

The number line estimation task captures central aspects of children's developing number sense, that is, their intuitions for numbers and their interrelations. Previous research used children's answer patterns and verbal reports as evidence of how they solve this task. In the present study we investigated to what extent eye movements recorded during task solution reflect children's use of the number line. By means of a cross-sectional design with 66 children from Grades 1, 2, and 3, we show that eye-tracking data (a) reflect grade-related increase in estimation competence, (b) are correlated with the accuracy of manual answers, (c) relate, in Grade 2, to children's addition competence, (d) are systematically distributed over the number line, and (e) replicate previous findings concerning children's use of counting strategies and orientation-point strategies. These findings demonstrate the validity and utility of eye-tracking data for investigating children's developing number sense and estimation competence.     

Social anxiety and cognitive expectancy of aversive outcome in avoidance conditioning

Fear conditioning studies have shown that social anxiety is associated with enhanced expectancy of aversive outcome. However, the relation between cognitive expectancy and social anxiety has never been tested in avoidance conditioning paradigms. We compared 48 low (LSA) and high socially anxious individuals (HSA) on subjective expectancy of aversive outcome during an avoidance conditioning task. Displays of neutral faces were coupled with an aversive outcome (US): a shout and a shock. Participants could avoid the US by pressing a correct button from a button box. First, HSA showed higher US expectancy than LSA during the initial phase of avoidance conditioning, supporting the view that socially anxious individuals have an expectancy bias when social situations are ambiguous. Second, when the avoidance response became unavailable, LSA showed lower US expectancy than HSA, suggesting that low socially anxious individuals are prone to a positive bias when perceived threat is high. A lack of such positive bias in socially anxious individuals may lead to higher susceptibility to safety behavior interpretations. Together, these findings support the role of cognitive processes in avoidance conditioning and underscore the relevance to encounter avoidance learning when studying social anxiety.