Nine speakers with verbal apraxia repeated 12 consonant-vowel-consonant target syllables four times each. Significantly more errors were produced in voiced than in voiceless contexts. Sixty-six percent of productions were produced in the same manner for first and last trials. (Author/DB)

In this study, the statistical properties of extended caution indices are investigated, and their relationships to Guttman scales and to item and person response curves are discussed. Further, these indices are standardized, and an example of their potential usefulness for diagnosing students' misconceptions is shown. (Author/BW)

Two studies with three-year-old children tested the hypothesis that, whereas errors of phenomenism predominate when children are asked about objects' real and apparent properties, errors of intellectual realism predominate when children are asked about objects' real and apparent identities. Results provided some support for the property-identity…

Analysis of errors on naming and recognition tasks performed by 34 children (4-12 years old) with language disabilities revealed a specific problem with naming rather than a more general vocabulary deficit and indicated four major types of errors, the most frequent of which were semantic substitutions. (CL)

Teachers can discover students' means of dealing with spelling as a problem through investigations of their error detection and correction skills. Approaches for measuring sensitivity and bias are described, as are means of developing appropriate instructional activities. (CL)

This paper proposes a new typology for understanding common research errors that expands on the four types of error commonly discussed in the research literature. Examples are presented to illustrate Type I and Type II errors, errors related to the interpretation of statistically significant and nonsignificant results respectively, with attention…

Three experiments are presented which examine the ability of 10-month-old infants to search in a new hiding place. (Author)

Reports that the New York "Times" and the Washington "Post" correct relatively few mistakes and that most corrections are of objective mistakes. (FL)

Results of analysis of 1,377 spelling error forms including three categories of spelling errors (consonantal, vowel, and sequential) demonstrate that majority of spelling errors are highly predictable when set of predefined rules based on phonological and sequential considerations are followed algorithmically. Eleven references and equivalent…

Reasons for college students making reversal errors translating a sentence to an equation were explored in six studies. The principal sources were haste, failure to check, failure to base the equation on the sentence meaning, and use of nonalgebraic symbols. Students could successfully check when prompted. (MNS)

In morphological processing in adult speech, irregular forms are subject to several types of errors, including overgeneralization and overtensing. A morphonaming task found that probability of these errors is affected by a phonological factor that derives from vowel phoneme frequencies in a complex fashion: whether the vowel in the past tense form…