The study examined the sustained effects of methylphenidate on reading performance in a sample of 42 boys, aged 8 to 11, with attention deficit-hyperactivity disorder (ADHD). Two subgroups were formed based on the presence or absence of co-occurring conduct disorders. Subjects were selected on the basis of their positive response to methylphenidate as determined in a series of original medication trials (Forness, Cantwell, Swanson, Hanna, & Youpa, 1991). For the purpose of this study, subjects were placed on their optimal dose of medication for a 6-week period and then tested on measures of oral reading and reading comprehension equivalent to those used in the original trials, retested after a week without medication (placebo), then tested again the following week after return to medication. Only the subgroup with conduct disorders responded, and this response was limited to reading comprehension improvement in only those subjects who also demonstrated improvement in oral reading on original trials. No response differences were found between subjects with or without learning disabilities. 相似文献
OBJECTIVE: To explore pediatricians' reluctance to adhere to a legal mandate to report suspected child abuse and to compare their perspectives with those described in other jurisdictions in studies informed by different theories and employing diverse methodologies. METHOD: An anonymous survey questionnaire was distributed to all pediatricians with admitting privileges to B.C. Children's Hospital which has a specialized Child Protection Services Unit. Physicians were asked about their own prior reporting experience and the influence of that experience upon future reporting decisions. They were also asked why they think other physicians might be reluctant to report (N = 26). RESULTS: While respondents were generally positive about their experience in filing a report to Child Protective Services, they were less positive about the dearth of feedback they received and they were undecided as to whether there was a positive outcome to their report. Their perceptions of the reasons colleagues might fail to report emphasized dissatisfaction with CPS, concern with loss of relationship with the child's parents, and a desire to avoid court proceedings. CONCLUSIONS: Physicians' noncompliance or at least dissatisfaction with their child abuse reporting mandate is an international problem that can not be addressed by institutional protocols alone. Confusions about the limitations on confidentiality and information sharing might be better addressed through more shared training and opportunities for collaboration than by legal mandates and institutional protocols alone. Organizational theory and exchange theory might inform future research about the conditions under which collaboration is enhanced in the service of protecting children. 相似文献
Low reading comprehension persists among deaf readers, and recent research indicates that low automaticity in recognizing words and parsing sentence patterns is a significant source of the difficulty. When a learner does manage to gain an insight about some aspect of printed English, there may be limited impact on comprehension until the new knowledge can be applied fluently because the multiple cognitive demands of reading call for completing basic linguistic operations with a minimum of conscious effort. The research literature agrees that the route to improved automaticity is effective practice, and, thus, practice is also a likely route to increased comprehension. This article presents considerations to guide the design of practice for deaf readers. Certain of these notions are relatively applied in nature and may shape practice activities directly, for example, the discussion of research-based guidelines for tailoring the sequence and composition of practice items. Other parts of the discussion, such as those related to word recognition, are more theoretical than directive, and they imply research hypotheses that can and should be tested empirically. A principal point of this article is that without appreciable improvements in practice, the reading of many deaf students will remain largely unimproved. 相似文献
In four Pavlovian conditioned lick-suppression experiments, rats had two conditioned stimuli (CSs X and A) independently paired with footshock, followed by pairings of a compound of A and X with the footshock. On subsequent tests with CS X, less conditioned suppression was observed than in control subjects that lacked the compound AX→footshock trials. Thisoverexpectation effect was reversed through posttraining extinction of CS A, a result consistent with both performance- and acquisition-focused models of retrospective revaluation. However, only performance-focused models could account for how posttraining increases or decreases in the A-footshock temporal interval attenuate the overexpectation effect. 相似文献
This paper implements a dynamic (i.e. temporal and local) research design for collaborative digital writing (CDW) in writing assignments in higher education. This research design builds on my paper “Temporality revisited: Dynamicity issues in collaborative digital writing research”, published in this journal (Engerer 2020). The design identifies current state-of-the-art approaches to digital writing and introduces 1) the components of text (the process and products of writing and learning communication), 2) external variables such as learning orientations and group composition, 3) an intermediate layer of time management that is related to organizing the assignment, and 4) the sphere of knowledge construction. The main modification, however, is the addition of four features specifically connected to time-related aspects: 5) micro-analysis, 6) dynamicity, 7) writer relevance and 8) source status. This dynamized research design is applied in a study of writing assignments carried out by the author with students of information science in the spring term of 2016. It is demonstrated how the temporal organization of a CDW process can be visualized and how central concepts such as Task structure, Reference structure and Final target structure are construed, operationalized and dynamically related to each other. Furthermore, a real-time analysis of sequential concept building is provided. The discussion shows that the study integrates all the above elements 1)-8) of a dynamic research design for CDW, although to different degrees. The study presented here can provide a general background for designing research in CDW and can inspire CDW researchers to capture in their research designs the dynamic, time-related features in CDW.
Many theories on college retention recognize the significance of student satisfaction as a positive factor in students’ persistence.
Yet, there are few theories that address the relationship of degree program satisfaction to study behaviour and dropout. This
paper explores the impact of degree program satisfaction on academic accomplishment and dropout. The impact of degree program
satisfaction was studied within a multitheoretical framework. The results of the study show that student accomplishment not
only depends on differences in academic ability but also on degree program satisfaction. Decreased degree program satisfaction
appears to diminish both study motivation and study behaviour. The authors discuss some implications for current educational
practice. 相似文献
Photoresist technology, which is used for micro-patterning exploits changes in properties of polymeric materials, such as their solubility or volatility, upon photo-irradiation. This process has greatly benefitted from the knowledge base of organic chemistry and photo-induced organic transformations. The role of chemistry in the development of photoresists is described in this article. 相似文献
4 successive cohorts of low-income families were randomly assigned either to a home-based intervention program that focused on modeling verbal interaction between mother and child around selected toys and books or to comparison treatments. Large program effects were found on maternal interaction styles in videotaped observations. Small IQ and program-specific effects were found for children in contrast to much larger IQ effects found in earlier research. IQ effects did not appear to have been mediated by changes in maternal behavior. A variation in which toys and books were supplied without home visits was as effective as the full program on IQ but not on maternal behavior. 3 years postprogram , there were no detectable effects in achievement or IQ tests or in first grade teachers' ratings of school adjustment and performance, but IQ and achievement scores were near national norms. Reasons for discrepancies with earlier results are discussed. The results highlight the need for continued experimental evaluation of early intervention programs with safeguards to insure that samples are educationally at risk. 相似文献
The emerging field of adult counseling generally refers to the applications of adult development and life transitions literature in counseling. To date, numerous definitions that apply a particular theoretical perspective to clients within an established counseling approach have characterized practice. In contrast, collaborative counseling is a term that defines an inclusive theoretical framework and distinct counseling approach. The phenomenology of counselors is defined in terms of three perspectives: (a) developmental—for conceptualizing adult experience and counseling; (b) collaborative—for characterizing counselor-client roles, interactions, and processes; and (c) idiographic—for conceptualizing applicability of theory and interventions to individuals. From these perspectives a specialized practice is derived that emphasizes transitional status assessment, adult processes, counseling outcomes in meaning and behavior, as well as multiple contexts and modalities for delivery of service. The implications for curriculum and training provide the basis for defining a specialization in adult counseling. 相似文献