This study evaluated performance of blind (n=17) and sighted adults on a haptic numerosity task of braille symbols in which symbol size was varied. Although blind subjects performed better than seeing subjects, the rate of learning and patterns of errors were similar, except that blind subjects did better with standard than with enlarged symbols.…

This longitudinal study evaluated grammatical judgments of "well formedness" of children (N=21) with specific language impairment (SLI). Comparison with two control groups found that children with SLI rejected morphosyntactic errors they didn't commit but accepted errors they were likely to make. Findings support the extended optional infinitive…

Discusses studies of dyslexia in German- and English-speaking children. Argues that deficits in phoneme awareness are only evident in the early stages of reading acquisition, whereas rapid naming and phonological memory deficits are more persistent in dyslexic children. (Author/VWL)

Green and Hecht's (1992, 1993) data are consistent with the Monitor hypothesis, and their findings match Krashen's (1982) report: self-correction (SC) has only a modest overall effect. Their subjects' high accuracy of attempted corrections could be the result of subjects' limiting SC to easily correctable items. (Contains 10 references.) (Author)

Discusses Rispoli's data on a model of pronoun case errors in child English, arguing that his claim that overextensions of he and him are antagonistic is inaccurate and his explanation for why her subjects are more frequent than other errors is insufficient. Discusses an account in terms of relative input frequencies, suggesting the fundamental…

Both the speed and accuracy of responding are important measures of performance. A well-known interpretive difficulty is that participants may differ in their strategy, trading speed for accuracy, with no change in underlying competence. Another difficulty arises when participants respond slowly and inaccurately (rather than quickly but…

Interactions between (multiple indicator) latent variables are rarely used because of implementation complexity and competing strategies. Based on 4 simulation studies, the traditional constrained approach performed more poorly than did 3 new approaches-unconstrained, generalized appended product indicator, and quasi-maximum-likelihood (QML). The…

The cross-proportion method allows both the instructor and the student to easily determine where an error is made during problem solving. The C-P method supports a strong cognitive foundation upon which students can develop other diagnostic methods as they advance in chemistry and scientific careers.

Although Fischer's convention for stereoisomers is useful for simple molecules, the stereochemistry of complex biochemical molecules is often poorly indicated in textbooks. This article reports on errors in stereochemistry of complex hydrosoluble vitamin B12 molecule. Twenty-five popular biochemistry textbooks were examined for their treatment of…

Dividing attention across multiple words occasionally results in misidentifications whereby letters apparently migrate between words. Previous studies have found that letter migrations preserve within-word letter position, which has been interpreted as support for position-specific letter coding. To investigate this issue, the authors used word…

This paper presents preliminary results of pre- and post-treatment error analysis from an aphasic patient with anomia. The Interactive Activation (IA) model of word production (Dell, Schwartz, Martin, Saffran, & Gagnon, 1997) is utilized to make predictions about the anticipated changes on a picture naming task and to explain emerging patterns.…

In their comment on D. Trafimow, M. D. Lee and E. Wagenmakers argued that the requisite probabilities to use in Bayes's theorem can always be found. In the present reply, the author asserts that M. D. Lee and E. Wagenmakers use a problematic assumption and that finding the requisite probabilities is not straightforward. After describing the…

A performance assessment consisting of 10 separate exercises was scored with a randomized scoring procedure. All responses to each exercise were rated once; in addition, a randomly selected subset of the responses to each exercise received an independent second rating. Each second rating was averaged with the corresponding first rating before the…

This article presents the findings of the first linguistic analysis of sign language interpreting carried out in Australia. A study was conducted on 10 Australian Sign Language/English interpreters to determine the rate and occurrence of interpreting omissions and the interpreters' level of metalinguistic awareness in relation to their production…

Computer Programming forms the basis from which most students in the IS/IT discipline launch themselves into further endeavors in the discipline. However, statistical analysis of students' performances in programming related assessments tasks reveals that the mastery of computer programming skills is not easily acquired. This assertion is…