This study was designed to assess whether the effects of computer-assisted practice on visual word recognition differed for children with reading disabilities (RD) with or without aptitude-achievement discrepancy. A sample of 73 Spanish children with low reading performance was selected using the discrepancy method, based on a standard score comparison (i.e., the difference between IQ and achievement standard scores). The sample was classified into three groups: (1) a group of 14 children with dyslexia (age M = 103.85 months; SD = 8.45) who received computer-based reading practice; (2) a group of 31 "garden-variety" (GV) poor readers (age M = 107.06 months; SD = 6.75) who received the same type of instruction; and (3) a group of 28 children with low reading performance (age M = 103.33 months; SD = 9.04) who did not receive computer-assisted practice. Children were pre- and posttested in word recognition, reading comprehension, phonological awareness, and visual and phonological tasks. The results indicated that both computer-assisted intervention groups showed improved word recognition compared to the control group. Nevertheless, children with dyslexia had more difficulties than GV poor readers during computer-based word reading under conditions that required extensive phonological computation, because their performance was more affected by low-frequency words and long words. In conclusion, we did not find empirical evidence in favor of the IQ-achievement discrepancy definition of reading disability, because IQ did not differentially predict treatment outcomes. 相似文献
This article uses a variety of principles of cultural-historical activity theory to extend Herbert Simon’s (1996) insight into the inherent linkage between the creation of artifacts and design. We argue that design research must grapple with the doubly artificial, as the classrooms in which many educational designs are implemented are themselves already artificial and contingent—the products of design—and the learning that is the focus of investigation is already an adaptation to the classroom environment and so artificial. Focusing our discussion on the mesogenetic character of the temporal characteristics of typical educational design-based intervention research, we present an example of an 18-year-long life span of an intervention that was initially expected to last 3 or 4 years. Crises late in the life of the system, 1 of which rescued the system, 1 of which terminated it, documented through field notes written by undergraduate participants, provide evidence for the dynamics of the system’s internal functioning in relation to events occurring in the larger ecology of which it was a part. 相似文献
In this paper I explore the connection between workplace relationships and teacher development. Using a conceptual framework built on Brim and Wheeler's (1966) ideas on self-socialization and Erickson's (1963) theory of psychosocial development I draw on information gathered in year one of a 2-year qualitative study of teacher socialization to explore the following questions: With whom do beginning teachers form relationships in their new professional contexts? What is the nature of these relationships? What functions do they serve? Are some relationships more important at some times than others? How do certain relationships facilitate or constrain the various aspects of teacher development? Can facilitating relationships be contrived? Can contrived relationships be facilitating? And, finally, what role does context play in all of this?The focus on relationships grows out of a need to understand better the role of the “other” in the professional growth process. By examining information gathered through conversations with 13 new teachers I will uncover and explore some of the issues pertaining to professional relationship formation and development particularly in relation to teacher socialization and the psychosocial aspects of teacher development. These insights will be used as a basis for a discussion of formalized induction programs which feature forms of institutionally imposed collaborative arrangements. Drawing on some of the recent work on teacher culture and collegiality (Hargreaves, 1990; Little, 1990; Rosenholtz, 1987, 1989), Barth's (1990) ideas on school improvement through the creation of a “community of learners”, and on Noddings' (1986) and Gherke's (1987) notions on the building of caring and helping communities, I will discuss the limitations of some of the recent trends in professional development for new teachers. I will recommend an alternative approach to new teacher induction, one that takes into account the individuality of the teacher, the school culture, and the socialization process. In essence, I will argue for a “natural” and integrated approach to teacher induction. 相似文献
This paper describes a two‐part investigation into how teachers perceive the curriculum. In the primary stage, teachers were asked to assess how much freedom they felt they should have to determine the content of what they taught in their own classrooms, and how much freedom they fell they actually had, in this respect. A sample of 196 teachers, from varied schools and teaching backgrounds, took part. It was found that there was a very definite tendency to take a ‘middle way’ between total freedom and total constraint, in both cases. By and large, these teachers seemed to feel that they should have some freedom to determine what they taught in their own classrooms, but that there should be restraints as well. The general lack of discrepancy between what the teachers wanted, and what they felt they had, seemed to indicate that the great majority of the teachers were happy with the situation as they perceived it.
The same sample of 196 teachers was then asked to assess thirty varied potential influences, in terms of their power to shape the content of what they themselves taught in their own classroom. These potential influences included LEA advisers, parents, school governors, national educational associations etc. A factor analysis of the ratings made by the respondents showed that they regarded EXTERNAL‐PROFESSIONAL influences as the most important of all. This category included such influences as local colleges, and universities, national reports (such as the Warnock Report), professional journals and articles, local teachers’ centres, LEA advisory personnel, H.M. Inspectorate, etc. Four other types of influence were seen as important, but the EXTERNAL‐PROFESSIONAL category was seen as the most important by far. It was concluded that teachers’ perceptions of the influences which they felt shaped their curricula were positive and optimistic. 相似文献
Measurement burst designs, wherein individuals are measured intensively during multiple periods (i.e., bursts), have created new opportunities for studying change at multiple time scales. This article develops a model that might be useful in situations where the functional form of short-term change is unknown, might consist of multiple phases, and might change over the long term. Specifically, we combine measurement of intraindividual entropy, a latent basis growth model, a multiphase growth model, and a growth model with covariates into a unified framework that could help accommodate the complexity of patterns that emerge in multiple time-scale categorical data streams. Empirical data from a longitudinal study of young children’s behavior during laboratory tasks designed to induce frustration are used to illustrate the utility of the proposed model for simultaneously describing intratask (short-term) change in self-regulation and developmental (long-term) shifts in intratask change. 相似文献
Mixture models capture heterogeneity in data by decomposing the population into latent subgroups, each of which is governed by its own subgroup-specific set of parameters. Despite the flexibility and widespread use of these models, most applications have focused solely on making inferences for whole or subpopulations, rather than individual cases. This article presents a general framework for computing marginal and conditional predicted values for individuals using mixture model results. These predicted values can be used to characterize covariate effects, examine the fit of the model for specific individuals, or forecast future observations from previous ones. Two empirical examples are provided to demonstrate the usefulness of individual predicted values in applications of mixture models. The first example examines the relative timing of initiation of substance use using a multiple event process survival mixture model, whereas the second example evaluates changes in depressive symptoms over adolescence using a growth mixture model. 相似文献
Research in Higher Education - Several recent studies have successfully identified college student typologies based on individuals’ behaviors. One limitation of past studies has been their... 相似文献