Eleven preschool children with Down Syndrome were taught new words/graphic symbols (Rebus or modified Bliss) using various treatment conditions. Incorporation of graphic symbols into language intervention programs may facilitate language acquisition, provided the tasks and procedures are appropriate to the child's developmental age and level of…

This holistic approach to speechreading instruction proposes: enhancement of the child's self-motivation, strategy-based instruction, an interactive processing approach that focuses on meaning and psycholinguistic guessing, bisensory instruction, and a hierarchical continuum beginning with easy, successful activities that gradually increase in…

This paper addresses neglected questions in item response theory (IRT): measurement of ability or trait parameters and item difficulty in the Rasch model; measurement of individual change based on a Rasch test; and the general framework for detection of differential item functioning under the Mantel-Haenszel procedure. (SLD)

The power of the nonparametric person-fit statistic, U3, is investigated through simulations as a function of item characteristics, test characteristics, person characteristics, and the group to which examinees belong. Results suggest conditions under which relatively short tests can be used for person-fit analysis. (SLD)

As part of a neuropsychological assessment, 95 adult patients completed either standard or computerized versions of the Category Test. Subjects who completed the computerized version exhibited more errors than those who completed the standard version, suggesting that it may be more difficult. (SLD)

This article evaluates the extent to which syntactic, lexical, and conversational factors can significantly predict the frequency and loci of stuttered moments in children's speech. A synthesis of the experimental and clinical evidence suggests ways in which the assessment and remediation of fluency disorders in children can be tailored to…

An experiment is reported in which 225 high school students were asked to choose among several multiple-choice items but then were required to answer them all. It is concluded that allowing choice while having fair tests is only possible when choice is irrelevant in terms of difficulty. (SLD)

This study assessed the effects of curriculum on technical features (criterion validity and developmental growth rates) within curriculum-based measurement in reading with 91 elementary level handicapped and nonhandicapped students. Correlations between oral reading samples and reading comprehension as well as developmental growth rates were…

The dichotomous Rasch model was applied to verbal subtest scores on the Intelligence Structure Test Battery for 905 12- to 15-year-old secondary school students in the Netherlands. Results suggest that, if any factor is used to increase difficulty of items, that factor should be used on all items. (SLD)

In three task settings differing in difficulty and turnover rate in a truck assembly plant, structured on-the-job training (OJT) provided twice the financial benefits as unstructured OJT and required one-fifth the mastery time. Turnover rate had a greater effect on benefit size than did task difficulty. (SK)

Japanese college students (n=483) learning English as a Foreign Language (EFL) read passages in English in one of three forms: (1) native baseline; (2) simplified; or (3) elaborated. The study found that comprehension was highest among learners reading the simplified version but was not significantly different from those reading the elaborated…

The relationship of internality-externality and dominance-submissiveness to student preference for course structure and course difficulty was examined for 86 college students. Preference measures were used, which focused on specific dimensions of instruction--structure and difficulty. In contrast to some other research results, internal and…

A network-flow model is formulated for constructing parallel tests based on classical test theory while using test reliability as the criterion. Practitioners can specify a test-difficulty distribution for values of item difficulties as well as test-composition requirements. An empirical study illustrates the reliability of generated tests. (SLD)

Aims to delimit the possible individual differences in feelings of difficulty experienced in relation to mathematics. Shows that feelings of difficulty form their own system, mainly influenced by performance and cognitive ability; also, gender interacts with personal and task characteristics. Discusses educational implications of these results.…

Attempts to determine the relative difficulty of playing selected types of melodic pattern by ear; studies the effects of performance experience and instrument family on the ability to play by ear; and investigates the relationship between tonal aptitude and ability to play by ear. Presents results and questions for further research. (DSK)