Defining features of natural kinds and artifacts

Two experiments investigated the role of three types of features (physical characteristics, functions, and chromosomal/molecular structure) in determining membership in natural kind and artifact categories. In the first, subjects decided if an object X would still be an X if it were different in one type of feature. A significant interaction was found between word type and change type, with the effects of chromosomal/molecular changes significantly greater for natural kinds than for artifacts, and the effects of functional changes significantly greater for artifacts than natural kinds. In the second experiment, subjects judged whether something would be an X if it were unlike instances of X in two of the above types of features, but like instances of X in one. There was again a significant interaction, with the effects of chromosomal/molecular features significantly greater for natural kinds than for artifacts, and the effects of functional changes significantly greater for artifacts than for natural kinds. These results suggest that chromosomal/molecular features define membership in natural kind categories and functional features define membership in artifact categories. The implications of these findings for the meaning of defining features are also discussed.The first experiment was conducted by the first author as part of a senior comprehensive exercise at Carleton College. We thank Kathleen Galotti, Matthew Gish, Neil Lutsky, and an anonymous reviewer for comments on earlier drafts of this article.     

Race differences and the Spearman hypothesis

Certain published data have been reviewed and new data presented relevant to the so-called Spearman hypothesis concerning the racial differences on cognitive tests of black and white Americans. In the published data, the correlation between the profiles of low socio-economic and high socio-economic status (SES) whites became ?.90 when sex, area of the country, and grade/age were controlled. This nearly mirror-image relationship suggests that the residual across-the-board difference between the two groups is primarily on the general factor in intelligence. In contrast, the same correlation between blacks and the low SES whites was only ?.19. This indicated not only independence of the profiles but the presence of multiple causes of differences in addition to a possible contribution of the general factor. These published interpretations have now been confirmed by obtaining correlations between general factor loadings and the group differences for most of the same tests. For the SES dochotomy in whites this correlation is .86. For blacks and the low SES whites it is .17. When the two distributions of differences are correlated, a value of .42 is obtained. The Spearman hypothesis appears to apply primarily to differences in socio-economic status rather than race. Furthermore, one cannot assume a large genetic component for each set of differences. Nor can one argue that the possibility of a large environmental component for each set indicates common environmental causes.     

Is EEG α a consistent measure of individual differences?

Integrated EEG activity in the 9–13 Hz band was recorded from 24 Ss under three experimental conditions (Relaxation, Attentive Listening and Mental Arithmetic) in two separate sessions. Analysis of components of variance due to persons and the interactions of persons with sessions and with conditions pointed to the importance of the persons × conditions interaction. It is concluded that under typically employed conditions of testing EEG α is not a consistent measure of individual differences.     

Family-focused cognitive behaviour therapy versus psycho-education for adolescents with chronic fatigue syndrome: Long-term follow-up of an RCT

The aim of this study was to investigate the long term efficacy of family-focused cognitive behaviour therapy (CBT) compared with psycho-education in improving school attendance and other secondary outcomes in adolescents with chronic fatigue syndrome (CFS). A 24 month follow-up of a randomised controlled trial was carried out. Participants received either 13 one-hour sessions of family-focused CBT or four one-hour sessions of psycho-education. Forty-four participants took part in the follow-up study. The proportion of participants reporting at least 70% school attendance (the primary outcome) at 24 months was 90% in CBT group and 84% in psycho-education group; the difference between the groups was not statistically significant (OR = 1.29, p = 0.80). The proportion of adolescents who had recovered in the family-focused CBT group was 79% compared with 64% in the psycho-education, according to a definition including fatigue and school attendance. This difference was not statistically significant (Fisher's exact test, p = 0.34). Family-focused CBT was associated with significantly better emotional and behavioural adjustment at 24 month follow-up compared to psycho-education, as reported by both adolescents (F = 6.49, p = 0.02) and parents (F = 4.52, P = 0.04). Impairment significantly decreased in both groups between six and 24 month follow-ups, with no significant group difference in improvement over this period. Gains previously observed for other secondary outcomes at six month follow-up were maintained at 24 month follow-up with no further significant improvement or group differences in improvement. In conclusion, gains achieved by adolescents with CFS who had undertaken family-focused CBT and psycho-education generally continued or were maintained at two-year follow-up. The exception was that family-focused CBT was associated with maintained improvements in emotional and behavioural difficulties whereas psycho-education was associated with deterioration in these outcomes between six and 24-month follow-up.     

Breathwork: An Additional Treatment Option for Depression and Anxiety?

Breathwork is an increasingly popular experiential approach to psychotherapy based on the use of a specific breathing technique, however, claims of positive mental health outcomes rely on anecdotal clinical evidence. To ascertain the likely efficacy of breathwork this review clarifies the approach and its theoretical assumptions and examines relevant empirical research relating to breathing inhibition, suppression of inner experience, and possible neurological and physiological effects. Additionally, research into mindfulness-based psychotherapy and yoga breathing-based interventions with comparable features to breathwork are examined. Findings suggest qualified support for the key theoretical assumptions of a three component breathwork model, referred to as Integrative Breathwork Therapy (IBT), and its possible utility in the treatment of anxiety and depression. Further research aimed at exploring specific efficacy of this approach for these disorders may yield a useful additional treatment option utilising a different process of change to existing treatments.     

Effect of an Automated Training Presentation on Pre-service Behavior Analysts’ Implementation of Trial-based Functional Analysis

The trial-based functional analysis (FA) is a useful alternative to the traditional FA in contexts in which it is challenging to establish environmental control for extended periods of time. Previous researchers have demonstrated that others can be trained to conduct trial-based FAs with high procedural fidelity by providing a didactic presentation, small group instruction, and then a performance evaluation. However, one barrier to replicating this training sequence is that didactic presentations are not standardized and presentations can vary considerably across different groups of trainers or researchers. We designed an automated didactic presentation with video models embedded throughout for trainers and researchers to use when training others to conduct trial-based FAs. The purpose of this study was to evaluate the effect of this presentation on participant fidelity to trial-based FA procedures. Results demonstrate improved fidelity following the presentation. However, the presentation alone was insufficient to establish consistently high levels of fidelity across all conditions for all participants. Thus, additional training components are required when teaching others to conduct trial-based FAs.     

Wonder Divine: At End but Ever New

Abstract

The wonderful human has been turned into un-wonderful matter and movement. We seek to recover wonder about the human by examining moments of its recognition, kindling, and suppression. First recognized in Greek philosophy and celebrated in the medieval scholasticism that saw the human in the total reality of divine creation, wonder is diminished today because it has been robbed of transcendence by a scientism that mistakes facts for truth and good and by a postmodernism that denies ultimate meaning. We close on the hopeful note that a diminished wonder cannot last because the divine mystery of human being abides.     

Validation of the Career Adapt-Abilities Scale and an examination of a model of career adaptation in the Philippine context

This paper presents the validation of the Career Adapt-Abilities Scale (CAAS) in the Philippine context. The CAAS consists of four subscales, with six items each, measuring self-regulative psychosocial resources (e.g., concern, curiosity, control, and confidence) for coping with occupational tasks and transitions. Filipino university students (N = 289) and working adults (N = 495) participated in the study. Internal consistency estimates for the full scale and subscales ranged from .87 to .97. Confirmatory factor analyses supported the multidimensional and hierarchical model of career adaptability. The factor structure was similar to that obtained from the CAAS international validation from 18 countries. Results also suggested that career adaptability was positively associated with adaptivity in the form of tenacious goal pursuit and flexible goal adjustment as well as with adaptation outcomes of career satisfaction and promotability. Overall, the findings confirm the utility of CAAS in the Philippine context and support the model that states higher levels of personal adaptivity (willingness) and career adaptability (competence) relate to better adaptation outcomes in terms of career success.