Balancing fit and parsimony to improve Q-matrix validation

The Q-matrix identifies the subset of attributes measured by each item in the cognitive diagnosis modelling framework. Usually constructed by domain experts, the Q-matrix might contain some misspecifications, disrupting classification accuracy. Empirical Q-matrix validation methods such as the general discrimination index (GDI) and Wald have shown promising results in addressing this problem. However, a cut-off point is used in both methods, which might be suboptimal. To address this limitation, the Hull method is proposed and evaluated in the present study. This method aims to find the optimal balance between fit and parsimony, and it is flexible enough to be used either with a measure of item discrimination (the proportion of variance accounted for, PVAF) or a coefficient of determination (pseudo-R²). Results from a simulation study showed that the Hull method consistently showed the best performance and shortest computation time, especially when used with the PVAF. The Wald method also performed very well overall, while the GDI method obtained poor results when the number of attributes was high. The absence of a cut-off point provides greater flexibility to the Hull method, and it places it as a comprehensive solution to the Q-matrix specification problem in applied settings. This proposal is illustrated using real data.     

Are emotionally intelligent people less prejudiced? The importance of emotion management skills for outgroup attitudes

People vary in their ability to understand, process, and manage information about one's own and others’ emotions, a construct known as Emotional Intelligence (EI). Past research highlighted the importance of EI in interpersonal relations as well as the key role of emotions underlying outgroup prejudice. Remarkably, hardly any research has investigated the associations between EI and outgroup prejudice. In three studies (total N = 922) conducted in Spain and the United Kingdom, we measured emotional intelligence using self-report and performance tests and prejudice toward a variety of outgroups. Results showed that those with stronger performance-based emotion management skills expressed lower generalized ethnic prejudice (Studies 1–3), more positive attitudes toward immigrants (Study 2a) and refugees (Study 2b), and less homophobic attitudes (Study 3). This negative association between emotion management and prejudice was found with different performance-based EI measures and held after controlling for self-perceived EI (Study 1) and self-reported abilities to regulate emotions (Study 3). Study 3 further demonstrated that higher empathy partly accounted for the association between emotion management and prejudice. The findings suggest that emotion management abilities play an important, but so far largely neglected role in generalized prejudice.     

Mediation of the stigma in the influence of negative symptomatology over recovery in psychosis

Background/Objective: The interest in recovery processes in psychotic disorders has boosted the necessity of knowledge about the factors that could influence in such recovery. Negative symptomatology and the stigma have been negatively linked to the recovery process in psychosis. The aim of this investigation is to improve the understanding of how the recovery process is affected by negative symptomatology based on the analysis of the mediating effects of the internalized stigma. Method: The sample was composed of 114 people that had experienced, at some point in their life, at least one clinically relevant psychotic episode. CAPE-42, STORI and ISMI were used for the evaluation. The macro PROCESS for SPSS was used. The indirect effect was calculated using 10.000 samples of bootstrap for the bootstrap confidence intervals (IC) corrected for bias. Results: The results show that the influence of negative symptomatology predicts the stigmatization of the person regarding his disorder. This predicts a negative influence in the recovery process of the psychosis. Conclusions: These results back the importance of adding the reduction of the stigma as a specific strategy to improve the recovery process in psychotic disorders.     

Psychology in Latin America: Historical reflections and perspectives

The present paper describes some of the most relevant events in the development of psychology in Latin America. After proposing a synthesis of antecedents, the paper addresses some scientific and professional activities leading to the birth of scientific psychology in several Latin American countries during the last decade of the 19th century. Next, the paper describes the foundation of university‐level institutions for education and professional training of psychologists during the first half of the 20th century. Finally, some reflections comment on the mechanisms which led to the creation and maintenance of several scientific communities contributing to a thriving contemporary Latin American psychology.     

Bright Cars and Outsiders: Evidence of Asymmetric Estimates in Vehicular Speeds

Using an improved analysis, this paper provides new evidence regarding the influence of vehicle attributes on the estimation of vehicular speed by an observer. An analysis of speeding records indicates that brightly colored vehicles systematically receive citations for relatively lower speeds. Findings also indicate that trucks were cited for significantly higher speeds than were cars. The findings clarify earlier conflicts in the literature as to whether vehicular characteristics give an impression of higher speed. As an additional topic of investigation, evidence is provided that outsiders, those not living in the jurisdiction, received citations for significantly lower speeds.     

The Logical Structure of Classical Genetics

We present a reconstruction of so-called classical, formal or Mendelian genetics using a notation which we believe is more legible than that of earlier accounts, and lends itself easily to computer implementation, for instance in PROLOG. By drawing from, and emending, earlier work of Balzer and Dawe (1986,1997), the present account presents the three most important lines of development of classical genetics: the so-called Mendel's laws, linkage genetics and gene mapping, in the form of a theory-net. This shows that the set theoretic representation format used in the structuralist approach to the philosophy of science also applies to the domain of genetic theories. There construction is intended to lend more clarity to theme thodological, philosophical and didactical discussions of the foundations of genetics, and on the other hand to defend a formally, logically minded view of theories which seems to have become contested through the work of Feyerabend, Kuhn and Kitcher. This revised version was published online in August 2006 with corrections to the Cover Date.     

Deontic action logic, atomic boolean algebras and fault-tolerance

We introduce a deontic action logic and its axiomatization. This logic has some useful properties (soundness, completeness, compactness and decidability), extending the properties usually associated with such logics. Though the propositional version of the logic is quite expressive, we augment it with temporal operators, and we outline an axiomatic system for this more expressive framework. An important characteristic of this deontic action logic is that we use boolean combinators on actions, and, because of finiteness restrictions, the generated boolean algebra is atomic, which is a crucial point in proving the completeness of the axiomatic system. As our main goal is to use this logic for reasoning about fault-tolerant systems, we provide a complete example of a simple application, with an attempt at formalization of some concepts usually associated with fault-tolerance.     

Beyond Inclusion: Non-monogamies and the Borders of Citizenship

This paper aims to understand the extent to which monogamy operates not only as a constitutive element of marriage-like institutions but also as a meta-judicial source of frequently overlooked forms of state violence. Drawing on the case of the Spanish law, it explores the privilege-driven logic that regulates the access to a complex set of economic benefits and legal protections, including immigration related rights, in order to show the extent to which monogamy is part of the grounding structure of an exclusionary constitutional citizenship. In addition, drawing on semi-structured interviews held with Spanish poly activists and biographical interviews held with LGBTQ non-monogamous people, it offers a view of non-monogamous communities as paramount spaces of resistance when it comes to re-imagining the relationship between the state and the intimate realm, beyond the mere inclusion of poly and other non-monogamous intimate relationships in certain pieces of legislation.     

Aggressive primes can increase reliance on positive and negative thoughts affecting self-attitudes

Past research has shown that exposure to aggression is associated with more negative responses toward others and also toward the self. In the present research, we argue that aggressive priming not only influences the content of thoughts (primary cognition) but also can influence how people think about their thoughts (secondary or meta-cognition) under some circumstances. Two experiments showed that the effect of the direction of thoughts (positive vs. negative) on self-evaluation was greater after receiving an aggressive (vs. control) priming induction. Among participants listing negative self-attributes, those in the aggressive (vs. control) prime condition reported more negative self-attitudes. However, among participants listing positive traits, the aggressive (vs. neutral) primes led to more favorable self-attitudes, reversing traditional effects of aggression on self-evaluation.     

Against cognitive artifacts: extended cognition and the problem of defining ‘artifact’

In this paper I examine the notion of ‘artifact’ and related notions (namely, ‘cognitive artifact’) in the dominant version of extended cognition theory (ECT) grounded on extended functionalism. Although the term is ubiquitous in the literature, it is far from clear what ECT means by it. How are artifacts conceptualized in ECT? Is ‘artifact’ a meaningful and useful category for ECT? If the answer to the previous question is negative, should we worry? Is it important for ECT to have a coherent theory of artifacts? And what are the demands and constraints that ECT imposes on this theory? I distinguish between two aspects of ECT, one narrow, aligned with extended functionalism (EF); and one broad or pluralistic, in which EF is combined with other theoretical resources in the context of diverse research programs. I begin by determining the problems in conceptualizing artifacts from EF. Then I address the question of why a concept of artifact may be relevant to ECT. Next, I examine the efforts of Richard Heersmink to combine ECT with dominant theories of artifacts in the philosophy of technology (ECT in its broad aspect). I argue that both approaches fail to yield a meaningful notion of artifact, let alone one of ‘cognitive’ artifact. Finally, I argue that narrow ECT places rather strong constraints on a theory of artifacts, since it locates the specificity of ‘artifact’ in material aspects of realization that are, by definition, outside its theoretical purview. I examine, then discard, the possibility that a materialist and objectivist theory of artifacts may be of help. And finally I briefly explore some ways in which a broad, pluralistic ECT may address some of these shortcomings.