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11.
Language abilities, reading acquisition, and developmental dyslexia: a discussion of hypothetical and observed relationships. 总被引:5,自引:0,他引:5
D J Sawyer 《Journal of learning disabilities》1992,25(2):82-95
Tests of a model of the expected relationships between language abilities and reading achievement measures from the beginning of kindergarten through third grade are discussed. At kindergarten, more global language abilities influenced early, wholistic measures of reading achievement, including letter and number naming. At Grade 1, these earlier accomplishments had a direct effect on word recognition, but a second direct effect was also apparent for word and pheneme segmentation measured in kindergarten. Comprehension at Grade 1 was influenced primarily by word recognition abilities at the same time. At Grade 2, comprehension influenced word recognition; at Grade 3, word recognition and comprehension were essentially independent. These findings are considered in the context of Frith's three-phase hypothesis of reading acquisition. A rationale for testing the potential of training in auditory segmentation to modulate the effects of developmental dyslexia is presented. 相似文献
12.
Children’s Participation in a Virtual Epidemic in the Science Classroom: Making Connections to Natural Infectious Diseases 总被引:1,自引:3,他引:1
Nina Neulight Yasmin B. Kafai Linda Kao Brian Foley Cathleen Galas 《Journal of Science Education and Technology》2007,16(1):47-58
This study investigated students’ understanding of a virtual infectious disease in relation to their understanding of natural
infectious diseases. Two sixth-grade classrooms of students between the ages of 10 and 12 (46 students) took part in a participatory
simulation of a virtual infectious disease, which was integrated into their science curriculum. The results from our analyses
reveal that students perceived the simulation as similar to a natural infectious disease and that the immersive components
of the simulation afforded students the opportunity to discuss their understandings of natural disease and to compare them
to their experiences with the virtual disease. We found that while the virtual disease capitalized on students’ knowledge
of natural infectious disease through virtual symptoms, these symptoms may have led students to think of its transfer more
as an observable or mechanical event rather than as a biological process. These findings provide helpful indicators to science
educators and educational designers interested in creating and integrating online simulations within classroom environments
to further students’ conceptual understanding. 相似文献
13.
Brook E. Sawyer Laura M. Justice Ying Guo Jessica A.R. Logan Stephen A. Petrill Katherine Glenn‐Applegate Joan N. Kaderavek Jill M. Pentimonti 《Journal of Research in Reading》2014,37(1):65-83
To contribute to the modest body of work examining the home literacy environment (HLE) and emergent literacy outcomes for children with disabilities, this study addressed two aims: (a) to determine the unique contributions of the HLE on print knowledge of preschool children with language impairment and (b) to identify whether specific child characteristics (oral language ability, print interest) moderated these relations. The sample consisted of 119 preschool children with language impairment. HLE was conceptualised as frequency of storybook reading and literacy teaching during book reading. Frequency of storybook reading was a unique predictor of print knowledge, which is consistent with research on children with typical language. Literacy teaching did not predict print knowledge, which diverges from research on children with typical language. No interactions between the HLE and child characteristics were significant, but language ability and print interest play a role in understanding individual differences in literacy development. 相似文献
14.
Recently, communication scholars have become interested in relationships between communication apprehension and the underlying biological predispositions for behavior called temperament. The resulting communibiological paradigm is said to account for individual differences in communicative behavior and adaptation to speaking situations. Because temperament is conceived as a multidimensional construct, the precise biologically determined predispositions influencing temperamental expression are yet to be discovered. In this research, Strelau's Pavlovian temperament theory is applied to this problem. Facets of the Pavlovian Temperament Survey were related to McCroskey's (1978) Personal Report of Communication Apprehension. Results suggest a moderate level of interdependence between communication apprehension and several facets of Pavlovian temperament. 相似文献
15.
Previous empirical studies of anxiety patterns associated with public speaking performance have exhibited major differences between the psychological and physiological waveforms. Moreover, current research indicates that, in physiological studies of public speaking anxiety, several different patterns are embedded in the overall pattern, thereby demonstrating the importance of discovering the proper differentiated pattern for any given speaker. In the present study, the general psychological anxiety pattern for public speakers was examined in order to attempt to discover if independent, differentiated, patterns reside within the global pattern. A primary and a secondary pattern emerged. These sub‐patterns are significantly different from one another at all major moments or milestones of the experience. In a second study, these patterns were identified by differing levels of anxiety sensitivity. Theoretical, pedagogical, and therapeutic implications of the findings are discussed. 相似文献
16.
Gray's neurological theory of anxiety (1982, 1990; Gray & McNaughton, 2000) predicts that state anxiety will decrease with continuous exposure to a fear arousing stimulus. Previous studies of psychological and physiological state anxiety patterns during public speaking have reported a pattern of progressively decreasing anxiety levels consistent with this phenomenon, known as habituation. In the current report, the extent to which the state anxiety behaviors of speakers conform to the habituation pattern is examined. In the first of two studies, 30 novice speakers presented informative speeches to audiences of 18 to 20 fellow students. These speeches were videotaped and replayed in their entirety for observers (N=30) who rated the severity of each performer's speech anxiety behaviors. In the second study, each videotaped presentation was divided into one‐minute segments and presented in random order to a new set of observers (N=25). Procedures in the second study were designed to control for rater expectations that state anxiety would decline over time. Overall, behavioral measures of public speaking state anxiety displayed a continually declining pattern associated with habituation. 相似文献
17.
This essay highlights and explores a point of tension between theoretical writings on style and moral frames. Past political communication scholarship points to the importance of the feminine style in today's televisual era of politics. In this same political era, the conservative strict parent moral frame has dominated most policy debates. Surprisingly, this highly successful moral frame appears squarely at odds with the feminine style so closely connected with political success. This essay attempts to unravel this tension between styles and frames by examining discourse drawn from the 2007 debate over comprehensive immigration reform. To account for the success of conservative messages within this debate, this essay both (a) calls into question the nature of the relationship between the television medium and the feminine style and (b) expands our understanding of the discursive operation of deep moral frames by drawing a distinction between intra-familial and extra-familial policy discourse. 相似文献
18.
Richard D. Sawyer 《The Urban Review》2000,32(4):343-363
This study examined the perceptions of alternate-route and college-prepared teachers about the adaptation of mathematics and writing curriculum to student diversity. Findings from analyses of survey and interview data suggest that while at any given time a majority of teachers from both groups favored curriculum adaptation in mathematics and writing, commitment to these beliefs among individual teachers was inconsistent over time, with a pattern of deflected responsibility emerging. With the exception of two specific teachers, when discussing the value of adapting writing curriculum to students' cultural values, neither group of teachers went much beyond a general rhetorical discussion. With regard to mathematics, both groups of teachers only infrequently discussed the value of adapting mathematics to students' cultural values. 相似文献
19.
Dharini M Bhammar Brandon J Sawyer Wesley J Tucker Jung-Min Lee 《Journal of sports sciences》2016,34(19):1830-1838
We compared SenseWear Armband versions (v) 2.2 and 5.2 for estimating energy expenditure in healthy adults. Thirty-four adults (26 women), 30.1 ± 8.7 years old, performed two trials that included light-, moderate- and vigorous-intensity activities: (1) structured routine: seven activities performed for 8-min each, with 4-min of rest between activities; (2) semi-structured routine: 12 activities performed for 5-min each, with no rest between activities. Energy expenditure was measured by indirect calorimetry and predicted using SenseWear v2.2 and v5.2. Compared to indirect calorimetry (297.8 ± 54.2 kcal), the total energy expenditure was overestimated (P < 0.05) by both SenseWear v2.2 (355.6 ± 64.3 kcal) and v5.2 (342.6 ± 63.8 kcal) during the structured routine. During the semi-structured routine, the total energy expenditure for SenseWear v5.2 (275.2 ± 63.0 kcal) was not different than indirect calorimetry (262.8 ± 52.9 kcal), and both were lower (P < 0.05) than v2.2 (312.2 ± 74.5 kcal). The average mean absolute per cent error was lower for the SenseWear v5.2 than for v2.2 (P < 0.001). SenseWear v5.2 improved energy expenditure estimation for some activities (sweeping, loading/unloading boxes, walking), but produced larger errors for others (cycling, rowing). Although both algorithms overestimated energy expenditure as well as time spent in moderate-intensity physical activity (P < 0.05), v5.2 offered better estimates than v2.2. 相似文献
20.