Sustained vs. transient cognitive control: Evidence of a behavioral dissociation

This study assessed whether two well known effects associated with cognitive control, conflict adaptation (the Gratton effect) and conflict context (proportion congruent effects), reflect a single common or separate control systems. To test this we examined if these two effects generalized from one kind of conflict to another by using a combined-conflict paradigm (involving the Simon and Spatial Stroop tasks) and manipulating the proportion of congruent to incongruent trials for one conflict (Simon) but not the other (Spatial Stroop). We found that conflict adaptation effects did not generalize, but the effect of conflict context did. This contrasting pattern of results strongly suggests the existence of two separate attentional control systems, one transient and responsible of online regulation of performance (conflict adaptation), the other sustained and responsible for conflict context effects.     

School System Evaluation by Value Added Analysis Under Endogeneity

Value added is a common tool in educational research on effectiveness. It is often modeled as a (prediction of a) random effect in a specific hierarchical linear model. This paper shows that this modeling strategy is not valid when endogeneity is present. Endogeneity stems, for instance, from a correlation between the random effect in the hierarchical model and some of its covariates. This paper shows that this phenomenon is far from exceptional and can even be a generic problem when the covariates contain the prior score attainments, a typical situation in value added modeling. Starting from a general, model-free definition of value added, the paper derives an explicit expression of the value added in an endogeneous hierarchical linear Gaussian model. Inference on value added is proposed using an instrumental variable approach. The impact of endogeneity on the value added and the estimated value added is calculated accurately. This is also illustrated on a large data set of individual scores of about 200,000 students in Chile.     

Assessment of Needs in Residential Care: Perspectives of Youth and Professionals

The evaluation and identification of needs profiles for youth in residential care, through qualitative and quantitative methodologies involving different stakeholders, are still relatively uncommon, even though they are essential in developing specific and effective services. This article will present two studies, one with youth and another with professionals. To assess needs from the standpoint of youth, four focus groups were held with youth in residential care (n = 21). To identify needs profiles of youth from the standpoint of professionals, 47 professionals evaluated a sample of youth in residential care (n = 110) using the RCYNA questionnaire. The results of the study with youth point to needs in three main areas: living situation, social and family relationships, and education. The results of the study with professionals reveal three needs profiles with distinct risk levels: low risk, without emerging needs; intermediate risk, with needs in terms of the economic and living situation; and high risk, with needs in terms of relationships, behavioural, psychological and emotional skills, and education and employment.     

Water Access and Subjective Well-Being: The Case of Sucre,Bolivia

In this paper we study the influence of residential water access on subjective well-being. The data come from original field work that includes 535 households in Sucre, Bolivia, a city with deficits in the water service. We relate two subjective well-being measures, satisfaction with life and satisfaction with the water domain, to water access variables. It could be the case that the effect of water access variables in subjective well-being could be spurious. That is, water access variables could be capturing shortfalls in other basic needs, such as a lack of income. In order to avoid spurious conclusions, we include socioeconomic variables such as income and place of residence in the regression as control variables. In addition, people might adapt to having poor access to water. The significance of the coefficients of the water variables could lead us to conclude that people do not adapt, but non significance means we cannot reject this possibility. In the econometric regressions, water variables such as water cuts, water quality and access quality, when added to the control variables, increase goodness-to-fit affecting both subjective well-being measures. Our results permit to assess the importance of key elements of access to water in the region under study by relating them to subjective well-being and reveal that water access influences subjective well-being beyond adaptation and other socioeconomic characteristics. Taking this into consideration, we propose that well-being studies in developing countries should consider water access aspects.     

Advancing an Understanding of the Anxiety Control Questionnaire for Children (ACQ-C) in Clinically Anxious and Non-Anxious Youth: Psychometric Properties,Incremental Prediction and Developmental Differences

A lack of perceived control over anxiety-related situations is theorized to be characteristic of anxiety disorders in children and adolescents. In the current study we tested several theoretical predictions and developmental variation with the Dutch translation of the Anxiety Control Questionnaire for Children (ACQ-C). The theoretical factor structure of anxiety control was tested using Confirmatory Factor Analysis (CFA) in 548 non-referred children (8–18 years old, M?=?12.5 years; 50.7 % girls). The incremental predictive validity of perceived control for anxiety status was assessed using logistic regression in 141 clinically anxious children (age M?=?12.6 years; 56.7 % girls) and 298 non-referred non-anxious children (age M?=?12.6 years; 52.7 % girls). CFA showed that both a one-factor model and two-factor model (perceived control over internal reactions and external events) fit well. The one-factor model proved invariant across age and gender. Internal consistency was excellent (Cronbach’s α?=?.93). Two-month test-retest reliability was adequate. The ACQ-C was able to incrementally predict diagnostic status, even after controlling for age, gender and self-reported anxiety symptoms. Finally, both younger children and girls reported less perceived control, independent of anxiety level. Findings advance the understanding of the psychometric properties of the ACQ-C, the role of control in childhood anxiety and point to the potential utility of the ACQ-C in both clinical and community samples. The Dutch translation of the ACQ-C demonstrated sound psychometric properties.     

On being victimized by peers in the advent of adolescence: prospective relationships to objectified body consciousness

Previous research indicates that peer victimization is tied to children's negative appearance evaluations. The current study examines whether early peer victimization is also prospectively related to objectified body consciousness. Six-hundred-and-two Swedish boys and girls answered questionnaires at age 10, and again at age 18. Main findings showed that being the target of peer victimization at age 10 was related to more habitual appearance monitoring and body shame at age 18. Gender moderated the relations between victimization and body shame, with victimized girls experiencing stronger body shame than victimized boys. Additionally, whereas boys experienced less body shame than girls, they were equally likely to monitor their appearance. In sum, this study provides preliminary support to the notion that peer victimization is involved in the processes by which young adolescents’ self-objectify. Future studies are warranted to further validate these findings.     

Dispositional optimism, pessimism and realism in technological potential entrepreneurs

Optimism has been classically considered a key trait in entrepreneurs' personality but it has been studied from a psychological point of view only in recent years. The main aim of this research is to study the relationship between dispositional optimism, pessimism and realism as a function of the tendency to create technology-based businesses. A sample of undergraduate students (n= 205) filled in an electronic questionnaire containing the Life Orientation Test-Revised after they were classified as potential technological entrepreneurs, potential general entrepreneurs and non-potential entrepreneurs. Our results show that technology-based entrepreneurs are more optimistic than non-potential entrepreneurs, whereas there were no statistical differences in pessimism and realism. The results are interpreted theoretically to define the potential entrepreneur and, from an applied perspective, to design training programmes to support future technological entrepreneurs.     

English as a foreign language (EFL) homework diaries: evaluating gains and constraints for self-regulated learning and achievement

Although homework completion is said to be rather important to achievement, nowadays there is a growing concern of educators about the increasing number of students who do not engage properly on doing the homework tasks and the subsequent impact on school failure rates. Focusing on English as a Foreign Language (EFL) and using a sample of 591 Portuguese fifth and sixth graders, the present study analyses the role played by a number of homework variables on students' achievement (proximal and distal), and their mediating role on the use of self-regulated learning strategies and perceived self-efficacy in the domain. Data confirm the indirect effect of homework on school achievement, by means of the referred cognitive and motivational variables (use of self-regulated learning strategies and self-efficacy). These findings are further discussed in order to highlight the significant role homework completion can play on fighting school failure.     

Predictive learning in nutrient-based flavor conditioning

This paper presents two experiments on nutrient-based flavor conditioning with rats as subjects and sucrose as the unconditioned stimulus (US). Experiment 1 was aimed at establishing an optimal control for conditioning, comparing simultaneous and serial presentations of a flavor and the US. The results showed that simultaneous, but not serial training, produced conditioning. Experiment 2 was designed to obtain evidence of summation as an index of both conditioned inhibition and predictive learning. Group Simultaneous received Pavlovian conditioned inhibition training during which flavor A was simultaneously paired with sucrose on excitatory trials (A+), and forming an unreinforced compound with flavor B on inhibitory trials (AB-). An independent excitor for the summation test was also trained by simultaneous pairings with sucrose (C+). In the control group (Blocked), the AB- trials were presented forming a block at the beginning of training to avoid a negative contingency-relationship with sucrose, and flavor A received serial rather than simultaneous pairing with sucrose (A --> +). On the summation test, only in group Simultaneous was consumption of the CB compound lower than that of flavor C alone, suggesting that, during training, flavor A activated an expectancy of the US occurrence.