What do dolphins (Tursiops truncatus) understand about hidden objects?

Object permanence, the ability to mentally represent and reason about objects that have disappeared from view, is a fundamental cognitive skill that has been extensively studied in human infants and terrestrial animals, but not in marine animals. A series of four experiments examined this ability in bottlenose dolphins (Tursiops truncatus). After being trained on a “find the object” game, dolphins were tested on visible and invisible displacement tasks, and transpositions. In Experiments 1 and 2, dolphins succeeded at visible displacements, but not at invisible displacements or transpositions. Experiment 3 showed that they were able to pass an invisible displacement task in which a person’s hand rather than a container was used as the displacement device. However, follow-up controls suggested they did so by learning local rules rather than via a true representation of the movement of hidden objects. Experiment 4 demonstrated that the dolphins did not rely on such local rules to pass visible displacement tasks. Thus, like many terrestrial animals, dolphins are able to succeed on visible displacement tasks, but seem unable to succeed on tasks requiring the tracking of hidden objects.     

Extending the the behavioral immune system to political psychology: Are political conservatism and disgust sensitivity really related?

Previous research suggests that several individual and cultural level attitudes, cognitions, and societal structures may have evolved to mitigate the pathogen threats posed by intergroup interactions. It has been suggested that these anti-pathogen defenses are at the root of conservative political ideology. Here, we test a hypothesis that political conservatism functions as a pathogen-avoidance strategy. Across three studies, we consistently find no relationship between sensitivity to pathogen disgust and multiple measures of political conservatism. These results are contrasted with theoretical perspectives suggesting a relationship between conservatism and pathogen avoidance, and with previous findings of a relationship between conservatism and disgust sensitivity.     

Gliding across the liminal space between counsellor and counselling researcher: Using collective biography practices in the teaching of counselling research methodologies

Aims: Drawing on their engagement in a specific collective biography research project, the co-authors aim to demonstrate how the weaving together of creative story-telling and the theory underlining collective biography practices resulted in an understanding of rhizomatic research methodologies from within the process. This paper aims to demonstrate one way in which research methodologies training can become more firmly embedded within counsellor training courses. Method: A collective of counselling students and a session tutor colleague used collective biography practices to research their memories of traversing the liminal space between ‘counsellor’ and ‘counselling researcher’. Alongside the resulting collective stories, a collaborative review of the research process examined our chosen ways of working within the project. Outcomes: Engaging in collective biography practices resulted in an experiential shift from ‘learning to do counselling research’ to ‘becoming counselling researchers’. Weaving together research processes and researcher reflexivity generated personal and professional learning. Ways in which these research methodologies complement core components of counselling training, within and beyond the teaching of research, were identified. Conclusions: Collective biography practices offer a way of introducing non-arboreal creative research methodologies into counsellor training. Careful consideration of potential challenges surrounding the introduction of these practices is required.     

The effects of exercise on body satisfaction and affect

This research used ecological momentary assessment to examine the effects of exercise on state body dissatisfaction and affect in 33 undergraduate females with high trait body dissatisfaction and 28 with low trait body dissatisfaction who exercised at least three times weekly. Trait body dissatisfaction was investigated as a moderator of the effects of exercise as well as different motivations for exercise. Results indicated all participants experienced lower state body dissatisfaction and negative affect and greater positive affect post-exercise. Trait body dissatisfaction moderated the association between motivations and exercise effects. Appearance and weight motivations were related to higher state body dissatisfaction for all individuals. Fitness and health motivations were related to higher state body dissatisfaction for high trait body dissatisfied individuals and lower state body dissatisfaction for low trait body dissatisfied individuals. Thus, although exercise has positive effects on body dissatisfaction and affect for high frequency exercisers, their exercise motivations impact these effects.     

Media violence exposure in aggressive and control adolescents: differences in self‐ and parent‐reported exposure to violence on television and in video games

The purpose of present study was to investigate differences in media violence exposure between groups of adolescents with and without Disruptive Behavior Disorders with Aggressive Features, using a case‐controlled design and multimethod assessment. Samples of 27 adolescents aged 13‐17 with Disruptive Behavior Disorder with Aggressive Features and 27 age‐gender‐IQ matched controls completed a semistructured interview about exposure to violence on television and video games; parents completed a corresponding questionnaire measure. Moderate intercorrelations were found between most self‐ and parent‐report television and video game violence exposure measures. Compared to control adolescents, adolescents with Disruptive Behavior Disorder with Aggressive Features had higher aggregate media violence exposure, higher exposure to video game violence, and higher parent‐reported exposure to television violence. Results show that adolescents and parents agree about the adolescent's level of media violence exposure, that exposure to violence on television tends to be accompanied by exposure to violence in video games, and that the association between media violence exposure and Disruptive Behavior Disorder with Aggressive Features is not due to a spurious effect of gender or IQ. Aggr. Behav. 31:000–000, 2005. © 2005 Wiley‐Liss, Inc.     

Coding online content-informed scaffolding of mathematical thinking

This article describes the Mathematical Mentoring Coding Scheme (MMCS), a coding scheme that identifies indicators relevant to the study of content-informed scaffolding. Content-informed scaffolding refers to the use of subject matter content in ill-defined problem spaces to focus the learner, and provide and fade feedback so that the learner becomes autonomous. It is suggested that the MMCS could also double as a rubric for instruction in content-informed scaffolding. Two case examples of preservice teachers’ scaffolding of elementary students’ problem solving serve as illustrations.     

Error correction in discrimination training for children with autism

Three procedures for correcting errors made during discrimination training were examined: error statement (saying ‘no’), modeling the correct response, and No Feedback. Six children with autism (age 3–7 years) were taught to match words to pictures with each of the three procedures, and the number of trials to mastery was compared across conditions. Results varied across participants. Two participants performed as well with no feedback as they did with an error correction procedure; two acquired skills slightly more quickly with an error correction procedure than with no feedback, but showed no difference between error correction procedures; one did best with error statement; and one did best with modeling. Results indicate that the choice of error correction procedure can have a large effect on rate of skill acquisition but that the optimal procedure may vary across individuals. Copyright © 2006 John Wiley & Sons, Ltd.     

La performance des élèves des communautés noires aux examens ministériels du secondaire Québécois: Cohortes 1994, 1995, 1996

This article discusses the results of various sub-groups of Quebec students from the Black community (originating from the West Indies or Africa and having French, English or Creole as their maternal language) who started high-school in the French or English sector in 1994, 1995 or 1996, on various departmental exams: history, physical sciences, written French and written English, language of instruction or second language, depending on the sector. The authors begin by presenting the socio-demographic, educational, and socio-economic profile of the population under study. The performance of the various sub-groups within each sector is then discussed and certain elements are put forward to explain the differences encountered. Finally, the authors add some concluding remarks about the potential contribution of the research, especially as it regards the identification of factors influencing schooling outcomes of visible minorities, both in Quebec and in other Canadian provinces.     

Children with behaviour problems: the influence of social competence and social relations on problem stability,school achievement and peer acceptance across the first six years of school

The aims of the present study were to investigate the role for problematic children of the child's social competence, teacher relations and behaviour with peers for later problem persistence, school performance and peer acceptance, in terms of moderating (protective and exacerbating) and independent effects. Groups of children with externalizing (n=26) and internalizing (n=25) problems and a non‐problematic group (n=44) were followed from grade 1–6. Teachers rated behaviour problems and social competence in the first, third and sixth grades, the teacher–child relationship in third grade, and school achievement in sixth grade. Behaviour with peers was assessed in observations in later elementary school. Peer acceptance was assessed through peer nominations in sixth grade. Both problem groups had lower social competence, school achievement and peer acceptance in sixth grade than the non‐problematic group. There were moderating and independent effects of social competence, teacher and peer relations on outcomes, but these applied mainly to children with internalizing problems. Copyright © 2006 John Wiley & Sons, Ltd.