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The double-deficit hypothesis of developmental dyslexia proposes that deficits in phonological processing and naming speed represent independent sources of dysfunction in dyslexia. The present article is a review of the evidence for the double-deficit hypothesis, including a discussion of recent findings related to the hypothesis. Studies in this area have been characterized by variability in methodology--how dyslexia is defined and identified, and how dyslexia subtypes are classified. Such variability sets limitations on the extent to which conclusions may be drawn with respect to the double-deficit hypothesis. Furthermore, the literature is complicated by the persistent finding that measures of phonological processing and naming speed are significantly correlated, resulting in a statistical artifact that makes it difficult to disentangle the influence of naming speed from that of phonological processing. Longitudinal and intervention studies of the double-deficit hypothesis are needed to accumulate evidence that investigates a naming speed deficit that is independent of a phonological deficit for readers with dyslexia. The existing evidence does not support a persistent core deficit in naming speed for readers with dyslexia. 相似文献
113.
Doping and antidoping are socially constructed, evolving and historically contingent phenomena relying on actors agreeing about allowed and deviant behaviour. Therefore, public discourse about doping represents an important part of the history of doping and antidoping. Content analysis of doping discourse in German quality media Der Spiegel und Die Zeit in the 1950s and 1960s shows that public attention for doping was rather low even though awareness increased due to the politicisation of sport and the rise of anabolic doping. Doping does not appear as a particular pressing but solvable problem. Moreover, doping is not linked to West German sport. In ethical terms, doping is perceived negatively. Neither does there exist a general mistrust in the sport bodies nor are sport bodies or sport policy clearly and resolutely requested to act. Therefore, the well-known 1969 article by Brigitte Berendonk marks a qualitative turn in public doping discourse. 相似文献
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Michael F. Giangreco Susan W. Edelman Catherine Nelson Mary Rose Young Richard Kiefer-O'Donnell 《International Journal of Disability, Development & Education》1999,46(4):463-473
This study provides data from 73 educational team members who used an updated version of the Vermont Interdependent Services Team Approach (VISTA) to assist them in planning educationally necessary support services for 11 students with multiple disabilities in general education classes. These data provide evaluative consumer feedback about changes in VISTA based on limitations identified through previous research. The results indicated that the changes were perceived positively by consumers, particularly related to overall quality, practicality, and more substantive involvement of parents and general education teachers in support service decision-making. Study respondents also identified areas in need of continued improvement in VISTA. Implications for future research, development, and practice are discussed. 相似文献
117.
Jeffrey William Frederick Aldous Bryna Catherine Rose Chrismas Ibrahim Akubat Charlotte Anne Stringer Grant Abt 《European Journal of Sport Science》2019,19(2):156-165
This investigation examined the effects of three pre-match and half-time cooling manoeuvres on physical performance and associated physiological and perceptual responses in eight University soccer players during a non-motorised treadmill based individualised soccer-specific simulation [intermittent soccer performance test (iSPT)] at 30°C. Four randomised experimental trials were completed; following 30-min (pre-match) and 15-min (half-time) cooling manoeuvres via (1) ice slurry ingestion (SLURRY); (2) ice-packs placed on the quadriceps and hamstrings (PACKS); (3) mixed-methods (MM; PACKS and SLURRY concurrently); or no-cooling (CON). In iSPT first half, a moderate increase in total (Mean?±?Standard Deviation: 108?±?57 m, qualitative inference: most likely, Cohen’s d: 0.87, 90%CL: ±0.31), high-speed (56?±?46 m, very likely, 0.68?±?0.38) and variable run (15?±?5 m, very likely, 0.81?±?0.47) distance covered was reported in MM compared with CON. Additionally, pre-match reductions in thermal sensation (–1.0?±?0.5, most likely, –0.91?±?0.36), rectal (–0.6?±?0.1°C, very likely, –0.86?±?0.35) and skin temperature (–1.1?±?0.3°C, very likely, –0.88?±?0.42) continued throughout iSPT first half. Physical performance during iSPT first half was unaltered in SLURRY and PACKS compared to CON. Rectal temperature was moderately increased in SLURRY at 45-min (0.2?±?0.1°C, very likely, 0.67?±?0.36). Condition did not influence any measure in iSPT second half compared to CON. Only MM pre-match cooling augmented physical performance during iSPT first half, likely due to peripheral and central thermoregulatory factors favourably influencing first half iSPT performance. Further practical half-time cooling manoeuvres which enhance second half performance are still required. 相似文献
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Little research has investigated the observational learning process from a developmental perspective. The purpose of this study was to extend previous research by considering two factors: performance versus learning and sequencing versus form scores. Children (N = 60) comprising two age groups (5-0 to 6-11 and 8-0 to 9-11 years) were randomly assigned to verbal rehearsal only, model only, or model plus verbal rehearsal conditions. The task was a 6-part motor skill sequence in which proper sequencing and quality of form were assessed. A 2 x 3 x 4 (age group by model type by trial blocks) repeated measures MANOVA revealed a significant three-way interaction. Older children performed equally well under any of the model type conditions during both performance and learning. For younger children, a model plus rehearsal was superior to rehearsal only on sequence and form at performance and learning and superior to model only on sequence scores during the first two performance trial blocks. Model only and model plus rehearsal conditions were equally effective on form scores. These results suggest that age differences exist in the modeling of motor skills under conditions varying in model type, sequence and form scores, and performance and learning phases. 相似文献
120.