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Improving Students' Representational Flexibility in Linear-Function Problems: An Intervention
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Acevedo Nistal, A.; Van Dooren, W.; Verschaffel, L. – Educational Psychology, 2014
This study evaluates the effects of an intervention aimed at improving representational flexibility in linear-function problems. Forty-nine students aged 13-16 participated in the study. A pretest-intervention-posttest design with an experimental and control group was used. At pretest, both groups solved a choice test, where they could freely…
Descriptors: Intervention, Experimental Groups, Control Groups, Secondary School Mathematics
Phonological and Lexical Development in Normal and Late-Talking Toddlers.
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Thal, Donna J.; And Others – Applied Psycholinguistics, 1995
Toddlers in the lowest 10th percentile for lexical production were compared with age- and language-matched controls on measures of phonetic complexity, lexical development, and grammatical complexity. Results indicate an overlap between phonology, lexicon, and grammar and suggest the importance of true consonant production for lexical development.…
Descriptors: Child Language, Consonants, Control Groups, Data Analysis
Learning Words from Context and Dictionaries: An Experimental Comparison.
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Fischer, Ute – Applied Psycholinguistics, 1994
Investigated the independent and interactive effects of contextual and definitional information on vocabulary learning. German students of English received either a text with unfamiliar English words or their monolingual English dictionary entries. A third group received both. Information about word context is crucial to understanding meaning. (44…
Descriptors: Context Clues, Control Groups, Data Analysis, Definitions