The Sato Caution Index takes into account the number and difficulty of items gotten wrong by a student within his or her ability, as well as the number and difficulty of items gotten right beyond his or her ability. Sato subtracts the two components to define a single Caution Index. In this study, the components are kept separate, defining a…

This study focused on analyzing children's difficulties with two-step mathematical word problems. Seventy-one fifth-grade children in Puerto Rico were individually observed solving five problems. Two of these were two-step problems; the remaining three were one-step problems with the same mathematical structures as the components of the two-step…

Types of errors made by children in addition and subtraction are presented and discussed. Suggestions are given for testing, diagnosing, and prescribing for instruction. (MNS)

The French pronunciation of 88 first-year German university students having studies French at grammar school for five years was analysed and compared with results of contrastive analysis. The composition of error categories according to contrastive features was confirmed by factor analysis. (Text is in German.) (Author)

This paper considers two classes of conversational errors: production errors and interactional errors. It is proposed that error correction can be used to invoke alternatives to concepts of persons, situation and relationships. (CK)

Two experiments investigated the effectiveness of reading backwards as a proofreading technique. Experiment 1 examined the general usefulness of backwards vs. forwards proofreading strategies and the effects of these strategies for two types of typographical errors: misspellings and contextual errors. Subjects, 36 undergraduate students at a…

An alternative definition has been developed of the delta scale of item difficulty used at Educational Testing Service. The traditional delta scale uses an inverse normal transformation based on normal ogive models developed years ago. However, no use is made of this fact in typical uses of item deltas. It is simply one way to make the probability…

The transcript of and guide to a two-cassette course designed to assist speakers of Black English in erasure of their accents includes an introduction on Black and Standard English usage, an explanation of the system used in this course, the pronunciation symbols used, and an explanation of how to change or eliminate trouble spots. The course is…

This report describes efforts made in 1981-82 to develop an error-prone model (EPM) to help judge the extent of misreporting of income and family size on applications for government-sponsored school meal benefits. (EPM's are statistical formulas that produce scoring systems used to distinguish applications likely to result in excess benefits from…

A probabilistic approach is introduced to classify and diagnose erroneous rules of operation resulting from a variety of misconceptions ("bugs") in a procedural domain of arithmetic. The model is contrasted with the deterministic approach which has commonly been used in the field of artificial intelligence, and the advantage of treating the…

The purpose of this study was to examine the division procedures of preschool children to determine whether such procedures involved one-to-one correspondence. Large and small numerosity trials were included so that the amount of effort and ease of using other procedures would vary. Odd and even number trials were included to determine whether…

A discussion of the preference structure of repair sequences in conversation argues that the structure varies predictably from one context to the next, based on the interpersonal relationship of the interlocutors. In particular, it is said to depend on the asymmetrical distribution of knowledge among the interlocutors, including knowledge of the…

In order to determine the knowledge and skills needed by novice programmers to successfully learn computer programming, four studies were conducted using a clinical interview technique. The first study determined that many systematic errors in programming were due to programmers' high-level misconceptions of the nature of the computer and of the…

Children learn arithmetic procedures by rote, rather than by constructing them with an understanding of numbers. Rote learning produces lack of flexibility, nonsensical errors, and other difficulties. Proposed is a theory of conceptual understanding and its role in learning and executing arithmetic procedures. The basic hypothesis is that…

This paper is the result of a study of ninety-two essays on three different topics by fifth-form pupils in the city of Ibadan. (Author)