Association of field dependence and color-coding to male students' achievement

This study concerned the relationship of field dependence and differentially color-coded materials (black-and-white and colored) with 56 male students' achievement. Significant differences were found in favor of the 21 field-independent men on the Total Criterion Test. Nonsignificant differences were found on the color-coding variable. A surprising and unexpected result was that the field-dependent men who viewed the black and white materials scored significantly higher than the 4 who viewed the color-coded materials.     

A Fundamental Failure of Frankfurt’s Agentic Counterfactual Intervention: No Agency

Philosophia - Frankfurt’s “Alternate Possibilities and Moral Responsibility” (1969) made an important intervention into the literature on moral responsibility via a classical...     

Anticipatory Processing and Post‐Event Processing in Social Anxiety Disorder: An Update on the Literature

Two repetitive thinking processes that have been proposed in prominent maintenance models of social anxiety disorder (SAD) are anticipatory processing and post‐event processing. Research into these two processes has steadily increased over the last 20 years. This review highlights the main lines of existing research on anticipatory processing and post‐event processing, including studies on the nature of these processes, their association with social anxiety, the predictors, and consequences of these processes, as well as how these processes respond to treatments for SAD. The review also highlights some of the conceptual and methodological issues that have prevented the literature on anticipatory processing and post‐event processing from being more integrated and focused. Finally, the review draws together some new directions in terms of theory and research to further advance the field.     

Superior discrimination between similar stimuli after simultaneous exposure

Human participants received unsupervised exposure to difficult-to-discriminate chequerboard stimuli (e.g., AX and BX), before learning a discrimination between them. Experiment 1 demonstrated that prior exposure enhanced later discrimination and that intermixed exposure (AX, BX, AX, BX ...) resulted in better subsequent discrimination than did blocked exposure (CY, CY ... DY, DY ...). Experiment 2 showed that simultaneous exposure to two similar stimuli (AX-BX, BX-AX ...) facilitated the later acquisition of a successive discrimination, more than successive exposure (AX-AX, BX-BX ...). These results parallel those observed by Mundy, Honey, and Dwyer (2007) who used pictures of human faces as stimuli and establish the generality of the fact that simultaneous exposure produces a particularly marked perceptual learning effect.     

Re-assessing causal accounts of learnt behavior in rats

Rats received either a common-cause (i.e., A→B, A→food) or a causal-chain training scenario (i.e., B→A, A→food) before their tendency to approach the food magazine during the presentation of B was assessed as a function of whether it was preceded by a potential alternative cause. Causal model theory predicts that the influence of an alternative cause should be restricted to the common-cause scenario. In Experiment 1, responding to B was reduced when it occurred after pressing a novel lever during the test phase. This effect was not influenced by the type of training scenario. In Experiment 2, rats were familiarized with the lever prior to test by training it as a potential cause of B. After this treatment, the lever now failed to influence test responding to B. In Experiment 3, rats given common-cause training responded more to B when it followed a cue that had previously been trained as a predictor of B, than when it followed another stimulus. This effect was not apparent in rats that received causal-chain training. This pattern of results is the opposite of that predicted by causal model theory. Thus, in three experiments, the presence of an alternative cause failed to influence test responding in manner consistent with causal model theory. These results undermine the application of causal model theory to rats, but are consistent with associative analyses.     

Self-care for academics: a poetic invitation to reflect and resist

In newspapers and blogs, on Twitter, and in academic papers, stories of struggling academics abound. Substance abuse, depression, failed relationships, and chronic illness are the casualties of a neoliberal university sector that values quantity over quality and demands ever more for ever less. Within the academic literature a growing counter-movement has called for resistance, collective action, and slow scholarship. Much of this work, however, has focused on strategies that can be applied within academia. Little has been written about the activities that academics do outside the university; activities that have no purpose other than enjoyment, rest, and renewal; activities that represent the valuing of the self as a human being, rather than a means of production; activities that could best be defined as self-care. Using reflective practice to construct a poem comprising three voices, this paper explores those activities. This poetic representation is an effort to create time and space for the authors, and a manifesto to encourage other academics to demand and protect the time, space, and reflective practice that are essential to both personal wellbeing and quality research and education.     

Male adolescents' reasons for participating in physical activity, barriers to participation, and suggestions for increasing participation

This study explored male adolescents' reasons for participating in moderate and vigorous physical activity, perceived barriers to moderate and vigorous physical activity, and suggestions as to what can be done to increase participation in physical activity. A total of 26 male 15- and 16-year-old adolescents participated in focus group sessions, which were audiotaped and transcribed verbatim; qualitative software facilitated data analysis. A constant comparison approach was used to inductively develop themes. It was found that participants engaged in physical activity for both intrinsic and extrinsic reasons. Their perceived barriers to physical activity included both internal factors (individual characteristics, lower priority for physical activity, and involvement in technology-related activities) and external factors (the influence of peers and family, lack of time, and inaccessibility and cost of facilities). Participants suggested that physical activity be promoted more in the community and that an environment more supportive of physical activity be developed. Results suggest that a variety of strategies should be used to help male adolescents maintain or increase participation in moderate and vigorous physical activity.     

Adolescent girls' perceived barriers to participation in physical activity

Research shows a decline in physical activity levels during adolescence, particularly among girls. This study explored perceived barriers to participation in moderate and vigorous physical activity among adolescent girls who live in a large ethnoracially and socioeconomically diverse city. A total of 73 adolescent girls in Toronto participated in 1 of 7 focus group sessions which were audiotaped and transcribed verbatim, and qualitative software was used to facilitate data analysis. A constant comparison approach was used to inductively develop themes. Participants' perceived barriers to participating in physical activity included: lack of time; involvement in technology-related activities; influence peers, parents and teachers; concern about safety; inaccessibility of facilities and cost of using them; competition; and body-centered issues. The results suggest that strategies to address specific intrapersonal, social-environmental, and physical-environmental barriers to physical activity participation should be used in physical activity promotion programs for adolescent girls.     

The solution of simultaneous equations

This paper is an attempt to integrate the various methods which have been developed for the numerical solution of simultaneous linear equations. It is demonstrated that many of the common methods, including the Doolittle Method, are variations of the method of single division. The most useful variation of this method, in case symmetry is present, appears to be the Abbreviated Doolittle method. The method of multiplication and subtraction likewise can be abbreviated in various ways of which the most satisfactory form appears to be the new Compact method. These methods are then applied to such problems as the solution of related equations, the solution of groups of equations, and the evaluation of the inverse of a matrix.