Explores the predictors of early mastery versus error in children's acquisition of American Sign Language. Hypothesizes that the most frequent values for a particular parameter in prelinguistic gesture will be the most frequent in early signs and the most likely sources of substitution when children make errors. (Author/VWL)

Investigated the picture naming skills of dyslexic children, poor comprehenders and children with normally-developing reading skills, using pictures with names that varied in word length and frequency. Relative to young children reading at the same level, dyslexic children were less accurate naming pictures that have long names, and they made a…

Reductions and timing errors were 2 major signing disruptions observed in a 64-year-old deaf signer with Parkinson's disease; these errors are phonetic rather than phonological in nature. Error analysis yields information about sign prosody and American Sign Language phonological representation. (Contains 54 references.) (JP)

A study of Hans Christian Andersen's diaries from age 20 to age 70 found that his mean error spelling percentages are equal to contemporaries, but between 2 and 15 times lower than individuals with dyslexia. A structural analysis indicates that the proportion of plausible/implausible errors match those of normal achievers. (Contains references.)…

To examine possible explanations of reported inaccuracies of children with specific language impairment (SLI) on nonword repetition, study compared repetitions of 54 SLI children and peers for number and type of error, latency, and duration of response. Found no evidence of differences between groups in auditory discrimination or response…

Two experiments examined relation between age-related changes in retention and age-related changes in the misinformation effect. Found large age-related retention differences when participants were interviewed immediately and after 1 day, but after 6 weeks, differences were minimal. Exposure to misleading information increased commission errors.…

For over a decade, the authors have been involved in a design theory experiment providing software for high school students preparing for the descriptive question on the Advanced Placement (AP) chemistry examination. Since 1997, the software has been available as a Web site offering repeatable practice. This study describes a 4-year project during…

This research examined 2 elements of multiple-choice test construction, balancing the key and optimal number of options. In Experiment 1 the 3 conditions included a balanced key, overrepresentation of a and b responses, and overrepresentation of c and d responses. The results showed that error-patterns were independent of the key, reflecting…

Linguistic theory has made important contributions to the clinical assessment and treatment of children with functional phonological disorders. In this article, Optimality Theory (OT) is introduced as a new linguistic model of grammar. Basic assumptions of the model are described and extended to clinical assessment and treatment. The aim is (1) to…

We conducted an experiment using training in a software package for presentations. Ninety undergraduate students with no previous experience received either training that guided them to commit common errors or alternatively training that sought to prevent errors from occurring. From previous research and relevant theory, a typology for…

A total of 156 students were asked to provide free-response balanced chemical equations for a classic multiple-choice particulate-drawing question first used by Nurrenbern and Pickering. The balanced equations and the number of students providing each equation are reported in this study. The most common student errors included a confusion between…

The concept of error detection plays a central role in theories of executive control. In this article, the authors present a mechanism that can rapidly detect errors in speeded response time tasks. This error monitor assigns values to the output of cognitive processes involved in stimulus categorization and response generation and detects errors…

Three experiments assessed the possibility that a physical practice participant 's ability to render appropriate movement timing estimates may be hindered compared to those who merely observed. Results from these experiments revealed that observers and physical practice participants executed and estimated the overall durations of movement…

The Malay language has a transparent morphological system and, unlike English, it is written in a very shallow alphabetic-syllabic script. We predicted that beginner spellers (six-to eight-year-olds) of this Rumi script would encode words at the level of the syllable and morpheme, rather than the phoneme. Using the results of a 75-item spelling…

After learning to categorize a set of alien-like stimuli in the context of a story, a group of 5-year-old children and adults judged pairs of stimuli from different categories to be less similar than did groups not learning the category distinction. In a same-different task, the learning group made more errors on pairs of non-identical stimuli…