Acids and Bases: The Appropriation of The Arrhenius Model by Tunisian Grade 10 Students     

Latifa Ouertatani  Alain Dumon  Malika Ayadi Trabelsi  Mohamed Soudani 《International Journal of Science and Mathematics Education》2007,5(3):483-506

In this work, we propose to identify the knowledge that Tunisian grade 10 students build up concerning acids and bases. Thus, after learning, we have proceeded by giving a paper and pencil task to students of two levels of teaching. The results obtained allow us to say that the assimilated knowledge is transitory; that the students have a worse perception of the base than of the acid concept and these two concepts are independent; that they associate the acid or base strength to its concentration; that the pH is far from being a “tool” of estimation of the degree of acidity; and that the students have difficulty in linking the empirical and the models’ registers. Moreover, some alternative conceptions that can be harmful to the learning of Brønsted’s model appear.  相似文献   

A longitudinal confirmatory factor analysis of indirect and physical aggression: evidence of two factors over time?     

Vaillancourt T  Brendgen M  Boivin M  Tremblay RE 《Child development》2003,74(6):1628-1638

The purpose of the present study was to examine whether indirect aggression was distinct from physical aggression across developmental periods. Participants were 3,089 Canadian children aged 4 to 7 years (Time 1), 6 to 9 years (Time 2), and 8 to 11 years (Time 3). Confirmatory factor analysis using an accelerated longitudinal design confirmed a 2-factor model that was stable across cohorts, time, and sex. The longitudinal predictive links between indirect and physical aggression were also examined in a path analysis. Findings did not support the notion that maturation is associated with changes in the ways children aggress but rather suggest that children are consistent in the type of aggression they use over time, whether it be indirect or physical.  相似文献   

What makes a good writer? Differences in good and poor writers' self-regulation of writing     

Ferrari  Michel  Bouffard  Thérèse  Rainville  Line 《Instructional Science》1998,26(6):473-488

Instructional Science - What makes someone a good writer? To begin to answer this question, we compared the discourse knowledge and self-regulation of good and poor writers, as well as the quality...  相似文献   

Two examples of international relations     

Michel Carton  Orlando Mella 《Prospects》1999,29(3):405-408

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French research into the didactics and technology of physical activities and sportes: An expanding new field     

David  Bernard  Bouthier  Daniel  Marsenach  Jackie  Durey  Alain 《Instructional Science》1999,27(1-2):147-163

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Does early child negative emotionality moderate the association between maternal stimulation and academic readiness and achievement?     

Ophélie A. Collet  Massimiliano Orri  Cédric Galéra  Laura Pryor  Michel Boivin  Richard Tremblay  Sylvana Côté 《Child development》2024,95(3):948-961

We investigated whether child temperament (negative emotionality, 5 months) moderated the association between maternal stimulation (5 months–2½ years) and academic readiness and achievement (vocabulary, mathematics, and reading). We applied structural equation modeling to the data from the Quebec Longitudinal Study of Child Development (N = 1121–1448; mostly Whites; 47% girls). Compared to children with low negative emotionality, those with high negative emotionality had higher levels of academic readiness (6 years) and mathematics achievement (7 years) when exposed to high levels of maternal stimulation (β = 3.17, p < .01 and β = 2.91, p < .01, respectively). The results support the differential susceptibility model whereby highly emotionally negative children were more susceptible to the influences of low and high levels of maternal stimulation in academic readiness and mathematics achievement's developments.  相似文献   

Popper’s debt to psychology     

Michel ter Hark 《Metascience》2010,19(3):453-456

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Cognitive and Neural Development of Individuated Self-Representation in Children     

Rebecca D. Ray  Amy L. Shelton  Nick Garber Hollon  Bethany D. Michel  Carl B. Frankel  James J. Gross  John D. E. Gabrieli 《Child development》2009,80(4):1232-1242

Processing the self-relevance of information facilitates recall. Similarly, processing close-other-related information facilitates recall to a lesser degree than processing self-relevant information. This memory advantage may be viewed as an index of the degree to which the representation of self is differentiated from representations of close others. To test developmental hypotheses concerning the self, this study examined the relation of memory for self- and mother-referentially processed information in participants age 7–13 years (Experiment 1: N  = 37; Experiment 2: N  = 14). Memory for words encoded with reference to oneself increases with age, relative to memory for words encoded with reference to one's mother. When used as an individual difference measure, the difference in self versus mother memory correlates with regions of the rostral anterior cingulate associated with affective salience.  相似文献   

Early Child Language Mediates the Relation Between Home Environment and School Readiness     

Nadine Forget-Dubois  Ginette Dionne  Jean-Pascal Lemelin  Daniel Pérusse  Richard E. Tremblay  Michel Boivin 《Child development》2009,80(3):736-749

Home environment quality is a well-known predictor of school readiness (SR), although the underlying processes are little known. This study tested two hypotheses: (a) child language mediates the association between home characteristics (socioeconomic status and exposure to reading) and SR, and (b) genetic factors partly explain the association between language and SR. Data were collected between 6 and 63 months in a large sample of twins. Results showed that home characteristics had direct effects on SR and indirect effects through child language. No genetic correlation was found between language and SR. These results suggest that home characteristics affect SR in part through their effect on early language skills, and show that this process is mainly environmental rather than genetic in nature.  相似文献   

Reading in French-speaking adults with dyslexia     

Jennifer Martin  Pascale Colé  Christel Leuwers  Séverine Casalis  Michel Zorman  Liliane Sprenger-Charolles 《Annals of dyslexia》2010,60(2):238-264

This study investigated the reading and reading-related skills of 15 French-speaking adults with dyslexia, whose performance was compared with that of chronological-age controls (CA) and reading-level controls (RL). Experiment 1 assessed the efficiency of their phonological reading-related skills (phonemic awareness, phonological short-term memory, and rapid automatic naming (RAN)) and experiment 2 assessed the efficiency of their lexical and sublexical (or phonological) reading procedures (reading aloud of pseudowords and irregular words of different lengths). Experiment 1 revealed that adults with dyslexia exhibited lower phonological reading-related skills than CAs only, and were better than RL controls on the RAN. In experiment 2, as compared with RL controls, only a deficit in the sublexical reading procedure was observed. The results of the second experiment replicated observations from English-language studies but not those of the first experiment. Several hypotheses are discussed to account for these results, including one related to the transparency of orthographic systems.  相似文献