This report reviews some ostensibly conflicting empirical findings which have been reported in conjunction with Elkind's (1967) conjecture that Piaget's conservation problems tap two distinct concepts. The discrepant findings which report on the order of emergence of identity conservation and equivalence conservation are discussed. An analysis of…

Four Negro children's (two average and two slow readers) oral reading was taped at eight regular intervals during their second and third year of reading instruction in order to analyze their oral reading miscues and to discover any developmental changes. Retelling of stories read was also taped to measure comprehension. The miscues were analyzed…

In the context of pass/fail decisions, using the Bock multi-nominal latent trait model for moderate-length tests does not produce decisions that differ substantially from those based on the raw scores. The Bock decisions appear to relate less strongly to outside criteria than those based on the raw scores. (Author/JAZ)

A study compared subjective and objective methods of evaluating college students' second-language communicative competence as expressed in their writing. (MSE)

An overall schema of interpretation for programming instructors is given, so that the misconceptions students develop in programming can be determined more readily. Types of language-independent and -dependent bugs, how they can be identified, and how to help students overcome them are addressed. (MNS)

Analyzes the editing behavior of skilled and less skilled writers. Results show that while the more skilled writers almost always corrected more errors than the less skilled, the two groups performed similarly on their own essays where neither corrected many errors at all. (SRT)

A test of logic using implicational and disjunctive sentences was given to Chinese and English speakers. No differences were found on "if-then" sentences, but differences were found on "or" sentences. (MNS)

Reports a study that examined sixth- and 10th-grade students' ability to generate orthographic and phonetic derivatives for three predominant vowel-alternation patterns characteristic of internal derivational morphology. Results support the hypothesis that a productive knowledge of these patterns in orthography precedes a productive knowledge of…

Reports a study that compared the spelling performance of a 17-year-old developmental dysgraphic of normal intelligence to that of an acquired dysgraphic. Findings indicate that both make phonologically valid errors and spell regular words better than irregular words. These performances reflect a phonological routine corresponding to that used by…

Advantages and disadvantages of joint maximum likelihood, marginal maximum likelihood, and Bayesian methods of parameter estimation in item response theory are discussed and compared. (Author)

The consistency of student response patterns on a test of language arts was examined in a set of studies as a first step toward designing a computer adaptive test to diagnose errors. (Author/LMO)

Argues that learning to spell is a developmental process and reviews research showing that errors made by poor spellers can indicate the point at which that development has broken down. Discusses some of the linguistic strategies students must acquire to become proficient spellers and offers teaching suggestions for helping students develop a…

Focuses on differences occurring with age and reading skill in the use of phonemic codes in short-term retention tasks where stimuli were presented visually. Subjects were groups of average readers in grades two, four, and six; superior readers in grade four; and disabled readers in grades four and six from three public schools. (Author/RH)

The process of transition from a novice's state to that of an expert, in the domain of decimals, is described in terms of explicit, intermediate, and transitional rules which are consistent yet erroneous. Data from students in grades 6-9 are included. (MNS)

A newly introduced approach, rule space, can represent large numbers of erroneous rules of arithmetic operations quantitatively and can predict the likelihood of each erroneous rule. The new model challenges the credibility of the traditional right-or-wrong scoring procedure. (Author/PN)