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21.
The study investigated the impact of language impairment and environmental deprivation on Hebrew morpho-lexical development across the school years. Participants were 659 grade school and middle school Hebrew-speaking students—typically developing and language impaired, from mid-high and from low socio-economic status (SES). They were all administered three derivational morphology tasks designed to elicit verbs, adjectives and derived abstract nouns. Each response was scored in three different ways: as a whole word, and according to its base (root or stem) and affixal (pattern or suffix) morphemes. Findings revealed three systematic hierarchies. First, the typically developing mid-high SES group always scored the highest, the language impaired low SES group always scored the lowest, while the typically developing low SES and the language impaired mid-high SES groups lay in-between. Second, verbs were the easiest category across all study groups, whilst adjectives and derived abstract nouns proved to be more affected by population type. Third, affixal morpheme always scored lower than base morpheme, with persistent gaps between the typically developing mid-high SES group and all other groups. Altogether, results show that language development is impeded extensively by both language impairment and SES factors, suggesting that in the long run, innate and environmental factors may have similar implications on morpho-lexical development. 相似文献
22.
A model is presented in which the realistic preview concept is extended beyond the job and organization choice situation for which it was originally suggested. Realistic previews are suggested for two major career transitions: the entry from high school to college and university and the transition from university to the world of work. The differences between high schools, universities and workplaces are discussed to highlight the need for realistic previews which pertain to aspects of the occupational field which a student pursues, as well as aspects of college or workplace environments. It is reasoned that realistic previews will soften those entry transitions in the same way that a realistic preview for job choice has been shown to be beneficial. 相似文献
23.
Yair Fogel-Dror Shaul R. Shenhav Tamir Sheafer Wouter Van Atteveldt 《Communication methods and measures》2019,13(2):69-82
A crucial challenge in measuring how text represents an entity is the need to associate each representative expression with a relevant entity to generate meaningful results. Common solutions to this problem are usually based on proximity methods that require a large corpus to reach reasonable levels of accuracy. We show how such methods for the association between an entity and a representation yield a high percentage of false positives at the expression level and low validity at the document level. We introduce a solution that combines syntactic parsing, semantic role labeling logic, and a machine learning approach—the role-based association method. To test our method, we compared it with prevalent methods of association on the news coverage of two entities of interest—the State of Israel and the Palestinian Authority. We found that the role-based association method is more accurate at the expression and the document levels. 相似文献
24.
Roza Leikin Mark Leikin Ilana Waisman Shelley Shaul 《International Journal of Science and Mathematics Education》2013,11(5):1049-1066
This study explores the effects of the presence of external representations of a mathematical object (ERs) on problem solving performance associated with short double-choice problems. The problems were borrowed from secondary school algebra and geometry, and the ERs were either formulas, graphs of functions, or drawings of geometric figures. Performance was evaluated according to the reaction time (RT) required for solving the problem and the accuracy of the answer. Thirty high school students studying at high and regular levels of instruction in mathematics (HL and RL) were asked to solve half of the problems with ERs and half of the problems without ERs. Each task was solved by half of the students with ERs and by half of the students without ERs. We found main effects of the representation mode with particular effect on the RT and the main effects of the level of mathematical instruction and mathematical subject with particular influence on the accuracy of students’ responses. We explain our findings using the cognitive load theory and hypothesize that these findings are associated with the different cognitive processes related to geometry and algebra. 相似文献
25.
Brain activity of regular and dyslexic readers while reading Hebrew as compared to English sentences
The aim of the present study was to examine differences among regular and dyslexic adult bilingual readers when processing reading and reading related skills in their first (L1 Hebrew) and second (L2 English) languages. Brain activity during reading Hebrew and English unexpected sentence endings was also studied. Behavioral and electrophysiological measures including event-related potentials (ERP) and low resolution electromagnetic tomography (LORETA) methodology were employed. Results indicated discrepancies in the processing profiles of dyslexic and regular bilingual readers in both first and second languages. In general, the amplitudes of the evoked potentials were higher and the latencies longer among dyslexic readers during processing of information in first and second languages (L1 and L2), but were more pronounced in English (L2). LORETA analysis indicated evidence that the source of brain activity measured by current density of brain activation is different when reading Hebrew as compared to English sentences mainly among dyslexics and not among regular readers. The data from the present study supports the dominanat bilingual hypothesis for defining bilinguals. A discrepancy between achievement in performing various L1 and L2 tasks was consistent across groups. Both groups were better in there mother tongue, which was Hebrew as compared to English. 相似文献