A sample of 293 local district assessments used in the Nebraska STARS (School-based Teacher-led Assessment and Reporting System), 147 from 2004 district mathematics assessment portfolios and 146 from 2003 reading assessment portfolios, was scored with a rubric evaluating their quality. Scorers were Nebraska educators with background and training…

A linear combination of a set of measures is often sought as an overall score summarizing subject performance. The weights in this composite can be selected to maximize its reliability or to maximize its validity, and the optimal choice of weights is in general not the same for these two optimality criteria. We explore several relationships…

Responses of 871 adults to the Adult Manifest Anxiety Scale-Adult version (AMAS-A) were factor analyzed using the method of principal axis factoring with promax rotation. Factor analysis yielded a four-factor solution: three anxiety factors (Worry/Oversensitivity, Stress, and Physiological Anxiety) and a Lie factor. The AMAS-A's three-factor…

In the present study we have investigated the acquisition of the past participle of Italian verbs of the second (including mostly irregular verbs) and third (including mostly regular verbs) conjugations in school age children, and with simulations with an artificial neural network. We aimed to verify the extent to which children are sensitive to…

This article is the third contribution to a research methods series dedicated to getting good results from survey research. In this series, "good results" is a stenographic term used to define surveys that yield accurate and meaningful information that decision makers can use with confidence when conducting program evaluation and policy assessment…

Emotional availability (EA) is a prominent index of socioemotional adaptation in the parent-child dyad. Is EA affected by context? In this methodological study, 34 mothers and their 2-year-olds were observed in 2 different settings (home vs. laboratory) 1 week apart. Significant cross-context reliability and continuity in EA as measured with the…

This paper describes a new instrument for evaluating the experience of the stuttering disorder from the perspective of individuals who stutter. Based on the World Health Organization's "International Classification of Functioning, Disability, and Health" [World Health Organization (2001). "The International Classification of Functioning,…

There is need for objective and reliable single-case research (SCR) results in the movement toward evidence-based interventions (EBI), for inclusion in meta-analyses, and for funding accountability in clinical contexts. Yet SCR deals with data that often do not conform to parametric data assumptions and that yield results of low reliability. A…

This study reports on the replication of the four-factor structure and the internal consistency of the Learning Behaviors Scale (LBS) with an independent sample of 241 students in Grades 1 through 7. Internal consistency estimates were as high or higher than those obtained with the standardization sample. Substantial replication of the four LBS…

Background: Health status is an important domain of quality of life of people with intellectual disabilities. This paper describes the development of a self-report health status measure for use with people with intellectual disabilities living in staffed community-based accommodation, and reports preliminary reliability data for the schedule.…

This paper presents a new measure for assessing quality of life (QOL)--the Multidimensional Quality of Life (MQOL)--and describes its derivation, characteristics, structure and several applications. Reasons for developing the MQOL include the restricted range of assessed domains and the heavy emphasis on health in many standard assessment tools.…

A simple errors-in-variables regression model is given in this article for illustrating the method of marginal maximum likelihood (MML). Given suitable estimates of reliability, error variables, as nuisance variables, can be integrated out of likelihood equations. Given the closed form expression of the resulting marginal likelihood, the effects…

Theory-testing can only inform scientific inquiry when the prediction of test outcome is based upon the current theory (theory-prediction consistency). This investigation explores children's theory-prediction consistency in a computer-mediated task in which multiple opportunities were provided to predict outcomes and review theories. An initial…

There are few reliable self-report measures suitable for people with a learning disability in reporting psychological distress. This study examines the modification of the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM), exploring its reliability, using two different presentation styles. One style included a sequencing task then…

In this study, the perceived importance and manageability of teachers on the factors in technology integration were assessed among 407 elementary and secondary schoolteachers. A questionnaire containing 28 items focusing on environmental, personal, social and curricular factors related to technology integration was used. Two sets of data resources…