For (0, 1) scored multiple-choice tests, a formula giving test reliability as a function of the number of item options is derived, assuming the "knowledge or random guessing model," the parallelism of the new and old tests (apart from the guessing probability), and the assumptions of classical test theory. It is shown that the formula is a more…

Objective: To determine if Reactive Attachment Disorder (RAD) can be reliably identified in maltreated toddlers in foster care, if the two types of RAD are independent, and to estimate the prevalence of RAD in these maltreated toddlers. Methods: Clinicians treating 94 maltreated toddlers in foster care were interviewed regarding signs of…

This paper analyzes the reliability and validity of a questionnaire designed by Archbold, Lutman, Gregory, O'Neil, and Nikolpoulos (2002) for the assessment of pediatric cochlear implantation. Parents of 61 youngsters (age range 5 to 16 years), who had the implant for at least 3 years, responded to the questionnaire and to an interview. The alpha…

In a recent article in this journal, Lombard, Snyder-Duch, and Bracken (2002) surveyed 200 content analyses for their reporting of reliability tests, compared the virtues and drawbacks of five popular reliability measures, and proposed guidelines and standards for their use. Their discussion revealed that numerous misconceptions circulate in the…

Five rating scales for screening and detection of Asperger's Disorder, three commercially available and two research instruments, are evaluated with reference to psychometric criteria outlined by Bracken in 1987 ("Journal of Psychoeducational Assessment," 4, 313). Reliability and validity data reported in examiner's manuals or published reports…

The psychometric properties of the Vineland Adaptive Behavior Scales Survey Form were studied in a total population of children and adolescents with MR, and in the specific levels of functioning (n=826, age 4-18 years). The original division into (sub)domains, as assigned by the authors, was replicated in the total population and in the mild and…

The use of reliability generalization methodology promises to, among other things, inform researchers about the importance of reporting reliability coefficients and their use in result interpretation. This study presents results from a reliability generalization study of the Self-Description Questionnaire (SDQ). The average score reliabilities…

Background: Individuals with Angelman syndrome (AS) seem to have a strong preference for water-related items. Until present, preference assessment in AS has not been reported. Methods: An adapted Dutch version of the Choice Assessment Scale (CAS) was administered by parents and other caregivers to 105 individuals with AS. The CAS was adapted by…

The purpose of this study was to examine the validity and reliability of the self-administered International Physical Activity Questionnaire (IPAQ) short form in college students. One hundred twenty-three undergraduate students (20.8 [plus or minus] 1.5 years of age, 76% Caucasian, 74% female) wore an accelerometer and pedometer at their waists…

This study examined the sexual messages depicted in music videos aired on MTV, MTV2, BET, and GAC from August 2, 2004 to August 15, 2004. One-hour segments of music videos were taped daily for two weeks. Depictions of sexual attire and sexual behavior were analyzed via a four-page coding sheet (interrater-reliability = 0.93). Results indicated…

Today's administrators in higher education face a dynamic marketplace that offers students an array of educational options and alternatives. Much like organizations more traditionally associated with marketing strategies and tactics, colleges and universities are gradually moving towards and embracing the marketing concept and a focus on consumer…

From the early 1900s to the present, there have always been inconsistencies in how teachers evaluate the writing quality of their students' essays. Their critiques vary as much as their personalities. To establish common standards in writing for all courses in which essays are assigned and, at the same time, not infringe on the integrity of…

Purpose: The purpose of this paper is to empirically test a new industry-specific scale, HEdPERF (Higher Education PERFormance) to capture the authentic determinants of service quality within higher education sector. Design/methodology/approach: The primary goal of this research was to test and compare the relative efficacy of HEdPERF against…

This article examines issues in developing valid and reliable direct observation of behavior. Suggestions are made to minimize the problems that threaten validity and reliability. The discussion is concluded by an examination of costs and benefits of direct observation and who pays them and who benefits from them. (Contains 5 tables and 2 figures.)

The goals of the current study were to investigate whether peer rejection mediated the relation between aggression and depressive symptoms in childhood, and if so, whether this mediational pathway was specific to the reactive subtype of aggression. Participants were 57 second-grade children (22 girls and 35 boys). Data on reactive aggression,…