A lesson in editing was learned from a study of errors made on a national mathematics test in Israel. Analysis indicated that the errors were often caused by careless printing of the test, misleading figures, poor designations, or ambiguous phrasing. (MNS)

The number and type of errors in self administration and scoring made on Holland's Self-Directed Search (SDS) and Self-Directed Search Form Easy (SDS-E) were examined. Subjects were 96 learning disabled and 96 non learning disabled high school students. All subjects made more errors on the SDS than on the SDS-E. Differences are discussed.…

Efficiency of three discrimination training procedures was compared for 21 mentally handicapped children. Results showed that two programmed techniques (graded stimulus and prompt fading) did not differ significantly, but both were significantly superior to trial-and-error learning. (Author/CL)

Explores 96 preschool children's utilization of complementary and taxonomic relations under varying task demands. Results indicated that, as task demands increased, (1) complementary intrusions produced systematic error in the taxonomic condition and (2) performance decreased in both conditions. Complementary pairs were maintained at progressively…

Many worthwhile mathematical activities can be generated by an overgeneralization. Some conjectures and their verification are described, with some exploration of historical procedures. (MNS)

A set of brief reflections about different aspects of mathematical errors and their roles in education is given. The nature and variety of errors and their positive use in learning mathematics are highlighted. (MNS)

This study involved 179 9-year-olds and 352 13-year-olds in New Zealand. Four addition and four subtraction tasks were set to ascertain students' ability to use the number line. Comparison of these data with results from the national assessment in the United States are given. (MNS)

Machine translation has been criticized for its inability to provide language style, but for specialized or technical texts, of which there are increasing numbers, machine translation with its obligatory post-editing may be effective, and the "style" of these translations may be a reflection of the error patterns caught in post-editing. (MSE)

Twenty-five infants were tested every two weeks on the AB Object Permanence Task, from the time they first reached for a hidden object until they were 12 months old. Results indicate that the AB provides an index of the ability to carry out an intention based on stored information despite a conflicting habitual tendency. (Author/RH)

Fourth-grade students in Title I mathematics took 40-problem tests to determine types of persistent errors made in addition and subtraction. Tests, administered to 117 students (addition) and 104 students (subtraction), were analyzed for basic fact, random, or procedural errors. Findings are reported and discussed, and recommendations for…

Unsuccessful programing attempts by university business students in introductory COBOL classes were analyzed to determine most frequently occurring syntactical errors. Results indicate the most common errors were use of undeclared data in Procedure Division, missing periods, misspelled reserved words, missing hyphens, and use of wrong margin area.…

The informal subtraction strategies that children develop are discussed in detail, with the role of the counting-down strategy described. Problems and remedies for difficulties caused by counting backward and the double count are also presented. (MNS)

Describes a technique for use in detecting and correcting spelling difficulties. (FL)

The relation between incorrect option choice and estimated ability level was examined for two widely used aptitude tests, the Scholastic Aptitude Test, and the Graduate Record Examination. Incorrect option choice was found to be related to estimated ability for many items. Implications of these findings are briefly discussed. (Author)

Discusses problems and patterns in student journalistic writing. (HOD)