The effects of reinvestment of conscious processing on switching focus of attention

The effects of switching focusing strategies on complex motor skill learning were investigated using a dart-throwing task. Participants were screened for reinvestment of conscious processing by completing the Reinvestment Scale (RS) of Masters, Polman, and Hammond (1993). After an initial baseline phase, two focusing strategies were described. Low and high reinvestors were then asked which of the strategies was used during baseline. Regardless of preference, they were requested to change focus. Novice dart-players used either a nonpreferred internal focus (EI), in which they were asked to concentrate on movements of their body, or a nonpreferred external focus (JE), in which they were asked to focus on the effects of their movements. This procedure produced two separate groups, El and 1E. Those scoring low and high on the RS were separated, thus producingfourgroups. Participants in the El high group were the least successful. These results support the findings of earlier studies suggesting that switching to an El is detrimental. Additionally, it appears that high reinvestors switching from a preferred 1E to a nonpreferred El are the most susceptible to unsuccessful performance.     

Arithmetic learning difficulties in children

This study explored the arithmetic skills of 39 children with arithmetic learning difficulties (ALD), compared to two control groups, one consisting of normally achieving children matched to the ALD sample for chronological age (n=28), and another comprising younger normally achieving children matched to the ALD sample for arithmetic level (n=28). To determine the relative contribution of reading impairments to arithmetic performance, the ALD group was further classified according to the presence or absence of reading difficulties into a mixed ALD (n=24) and specific ALD (n=15) group, respectively. The ALD group performed well below their chronological age counterparts in terms of the developmental maturity of their arithmetic problem solving. These children demonstrated a reliance on slow, counting-based procedures to solve arithmetic problems and, in this regard, they performed similarly to their younger, arithmetic-matched normal peers. Children with ALD also employed direct fact retrieval reliably less often than their same-age peers, but did not differ from their younger, arithmetic-matched counterparts. There were few significant differences between ALD children with and without accompanying reading problems. The findings suggest that children with ALD appear to show delayed development of arithmetic skills rather than specific processing deficits or abnormalities when comparison is made with both their chronological age and arithmetic-matched normal peers.     

Can Didactic Transposition and Popularization Explain Transformations of Genetic Knowledge from Research to Classroom?

We will attempt a synthesis from various research perspectives that have analyzed the alterations that knowledge inevitably goes through while percolating into classroom activities. We will try to identify some of their causes and will illustrate them with examples in genetics. First, we will discuss some research on knowledge transformation when genetics knowledge is popularized (Staerklé and Clémence 2002), to show how knowledge is transformed in specific predictable manners as it moves from experts to general public. Then, we will draw from a large body of (French) research in didactic transposition (Chevallard 1991) in order to highlight what knowledge characteristically thrives or is lost as it percolates into school practice and learner’s knowledge. We will then draw from Huberman’s (Science Communication, 4(4), 478–510, 1983) analysis of knowledge use in schools the specificities of knowledge that teachers effectively use. All three perspectives reveal that cognitive and social environment are crucial determinants of what knowledge will be found in schools. An ecological metaphor explains how different cognitive environments from research into education favor knowledge adapted to specificities of this ecosystem. This transposition of knowledge is therefore not decay but inescapable and necessary. Ignoring this transposition has considerably reduced the effectiveness of many educational reforms. We will combine these three to propose an evolutionary perspective that could inform ways of expressing research into educational recommendations fed into the system to optimize the didactic transposition process.     

Some Consequences of Early Harsh Discipline: Child Aggression and a Maladaptive Social Information Processing Style

Although a number of studies have reported a relation between abusive parental behavior and later aggressive behavior in the victim, many of these investigations have had methodological limitations that make precise interpretation of their results problematic. In the present study, we attempted to determine whether harsh parental discipline occurring early in life was associated with later aggression and internalizing behavior in children, using a prospective design with randomly selected samples to avoid some of these methodological difficulties. Structural equation modeling indicated a consistent relation between harsh discipline and aggression in 2 separate cohorts of children. This relation did not appear to be due to possible confounding factors such as child temperament, SES, and marital violence, although there was some indication in our data that the latter variables were related to child aggression. In addition, our analyses suggested that the effect of harsh discipline on child aggression may be mediated at least in part by maladaptive social information processing patterns that develop in response to the harsh discipline.     

Using Multisite Experiments to Study Cross-Site Variation in Treatment Effects: A Hybrid Approach With Fixed Intercepts and a Random Treatment Coefficient

The present article considers a fundamental question in evaluation research: “By how much do program effects vary across sites?” The article first presents a theoretical model of cross-site impact variation and a related estimation model with a random treatment coefficient and fixed site-specific intercepts. This approach eliminates several biases that can arise from unbalanced sample designs for multisite randomized trials. The article then describes how the approach operates, explores its assumptions, and applies the approach to data from three large welfare-to-work trials. The article also illustrates how to report cross-site impact findings and presents diagnostics for assessing these findings. To keep the article manageable, it focuses on experimental estimates of effects of program assignment (effects of intent to treat), although the ideas presented can be extended to analyses of multisite quasi-experiments and experimental estimates of effects of program participation (complier average causal effects).     

The Impact of CMS Quality on the Outcomes of E‐learning Systems in Higher Education: An Empirical Study

Course Management Systems (CMSs) in higher education have emerged as one of the most widely adopted e‐learning platforms. This study examines the success of e‐learning CMSs based on user satisfaction and benefits. Using DeLone and McLean's information system success model as a theoretical framework, we analyze the success of e‐learning CMSs in five dimensions: system quality, information quality, instructional quality, user satisfaction, and CMS benefits. An analysis of survey data collected from students participating in a university‐wide CMS shows that system quality, information quality, and instructional quality positively influence user satisfaction, which, in turn, increases the benefits of CMSs. By providing a comprehensive framework for the critical success factors in e‐learning CMSs and their causal relationships, this study provides practical implications for managing e‐learning courses and resources for a more flexible and effective CMS‐centered, e‐learning environment.     

Balancing Emotion and Reason to Develop Critical Thinking About Popularized Neurosciences

Science & Education - Bioscientific advances raise numerous new ethical dilemmas. Neuroscience research opens possibilities of tracing and even modifying human brain processes, such as...     

Microanalysis of variable-interval performance during stimulus compounding

Additive summation is observed when more responses are emitted to the simultaneous presentation (tone-plus-light) of independently conditioned stimuli (tone and light) than to either stimulus presented alone. The current experiment sought to determine if this increased rate during tone-plus-light was a function of a new modal interresponse time (IRT) or a differential mixing of pauses with a modal IRT characteristic of the responding in tone and light alone. Three rats were trained on a three-component multiple schedule where tone and light were each associated with a variable-interval 30-sec schedule while a variable-interval 100-sec operated in the simultaneous absence of these stimuli, tone-off and light-out. Baseline response rates were 2–4 times as high in tone or light as in their absence. In testing, more responses were emitted to tone-plus-light than to tone or light by all animals, but the modal IRT was in the 0.2–0.4-sec IRT bin for all test conditions. Tone-plus-light controlled fewer long IRT values and more responses in the short modal category than tone or light alone. These results support the response mixing hypothesis of stimulus control; i.e., no “new” behavior was observed during the novel combination of stimulus elements, only a mixture of previously reinforced behavior patterns in different proportions.