An important element of learning to read and write at school is the ability to define word boundaries. Defining word boundaries in text writing is not a straightforward task even for children who have mastered graphophonemic correspondences. In children's writing, unconventional word segmentation has been observed across a range of languages and…

This study examined the development of integrated knowledge or automatic competence in adult SLA. Automatic competence was operationalized in terms of the participants' sensitivity to grammatical errors in a self-paced reading task. Their sensitivity was determined by observing whether there was a delay in reading ungrammatical sentences. Native…

Purpose: The purpose of this study was to examine the relationship between the types of speech errors that are produced by children with speech-sound disorders and the children's phonological awareness skills during their prekindergarten and kindergarten years. Method: Fifty-eight children with speech-sound disorders were assessed during the…

We tested human performance on the Euclidean Traveling Salesman Problem using problems with 6-50 cities. Results confirmed our earlier findings that: (a) the time of solving a problem is proportional to the number of cities, and (b) the solution error grows very slowly with the number of cities. We formulated a new version of a pyramid model. The…

P. A. Frazier, A. P. Tix, and K. E. Barron (2004) highlighted a normal theory method popularized by R. M. Baron and D. A. Kenny (1986) for testing the statistical significance of indirect effects (i.e., mediator variables) in multiple regression contexts. However, simulation studies suggest that this method lacks statistical power relative to some…

Cognitive load theorists have frequently used subjective measures of cognitive load to test the effectiveness of instructional procedures. This study sought to broaden the applications of subjective measures by testing their ability to detect variations in intrinsic cognitive load within tasks. In two experiments students were asked to complete…

Studies of sentence comprehension deficits in Parkinson's disease (PD) patients suggest that language processing involves circuits connecting subcortical and cortical regions. Anatomically segregated neural circuits appear to support different cognitive and motor functions. To investigate which functions are implicated in PD comprehension…

Background: Studies focusing on reading errors can help to understand how children learn to read and to structure key components of reading instruction. However, no prior studies have examined which letters might be a greater source of difficulty for beginning readers in Spanish. Aims: First, to examine the pattern of reading errors in beginning…

A geographer and a developmental psychologist collaborated on an investigation of the development of children's ability to comprehend, produce, and use graphic representations of space. Such representations are called "geo-graphics" in this paper. The researchers held that children's mastery of maps is dependent on their developing…

Algebra word problems were analyzed in terms of the information integration tasks that are required to solve the problems. These tasks were classified into three levels: value assignment, value derivation, and equation construction. Novices (35 first year algebra students) and experts (13 analytic geometry students) were compared on the proportion…

Isolates and analyzes the errors in the English speech of a Punjabi-speaking Indian. (CK)

The study investigated whether the pre-arrangement of math facts in spaced repetitions redundancy would increase the acquisition rate of a second grader with poor mathematics achievement. Baseline data were provided by observation of in-class math performance of addition sums zero through 18. In the experimental phase, worksheet problems were…

This paper is concerned with the role of meaning and understanding in the acquisition of computational skill in subtraction. Evidence on the syntactic nature of subtraction errors is reviewed, with common "bugs" described. Then, data collected from interviews with four children are summarized in terms of their semantics of concrete…

Assessment data and other research findings on fractions are briefly reviewed. These indicate that students are able to add and subtract fractions but have substantial difficulty finding and using common denominators. Selected results for nine-year-olds from the first and second national assessments of mathematics are used to portray what students…

Spoonerisms can be elicited by having the subject articulate a target preceded by bias items. Any systematic difference in rate of errors between similar targets must result from processes after recoding of target into its slip. Editing processes make lexical outcomes more frequent than nonsense outcomes. (CHK)