Children's mental performance was studied in the context of arithmetic word problem solution. Response latency and error data indicated subtraction was more difficult than addition. Understanding children's problem solutions in terms of flexible strategy use and the fact that many errors have a systematic basis are important in studying children's…

Several examples of mathematical diagnosis using microcomputer software are presented, with possible future considerations suggested. Three limitations of the software are discussed. (MNS)

Examined performance and error patterns of 50 bilingual Mexican-American third through fifth graders on the Expressive One-Word Picture Vocabulary Test (EOWPVT) and the Peabody Picture Vocabulary Test-Revised (PPVT-R). The EOWPVT had adequate concurrent validity with PPVT-R. On both tests, scores were almost two standard deviations below normative…

This excerpt from "Managerial Engineering: Techniques for Improving Quality and Productivity in the Workplace" describes the development, objectives, and use of On-Error Training (OET), a method which trains workers to learn from their errors. Also described is New Joharry's Window, a performance-error data analysis technique used in…

The performance of 60 fourth form pupils who had been taught to solve algebraic equations by the algorithmic or flow chart method was studied. A sizeable number of pupils were not using the flow chart method. Other types of errors are noted. (MNS)

Following an experiment which revealed that production of grammatically correct sentences and correction of grammatically problematic sentences in French are essentially different skills, a progressive training method for finding and correcting grammatical errors was developed. (MSE)

Evidence was collected to support previous research findings that children prefer quantitative to formal methods of solving linear equations. They find formal methods difficult. How to help them become more receptive to learning formal methods is discussed. (MNS)

In comparative judgments of two stimuli separated by a time interval, there is often a systematic asymmetry (time-order error). From a review of the literature it is concluded that the time-order error should be classified as a perceptual phenomenon that can be predicted with adaptation-level theory and sensation weighting. (Author/CB)

On the Australian Mathematics Competition, boys responded correctly to more questions than did girls, but this difference came largely from a handful of questions. Responses to questions where sex differences occurred are discussed. (MNS)

Two factors, language difficulty and option set convergence, were experimentally manipulated and their effects on item difficulty assessed. Option convergence was found to have a significant effect on item difficulty while the effect of language difficulty was not significant. (Author/BW)

Provides suggestions for helping student writers deal with predication. (FL)

Adults and children judged mirror and nonmirror pairs of stimuli. The findings in this research suggested a nonperceptual explanation of mirror-image confusions, one involving conceptual and linguistic considerations. (Editor/RK)