Describes the unique reliability problems of very large databases that necessitate specialized techniques for hardware problem management. The discussion covers the use of controlled partial redundancy to improve reliability, issues in operating systems and database management systems design, and the impact of disk technology on very large…

The latent composition of the Learning and Study Strategies Inventory for High School (LASSI-HS) was studied through exploratory and confirmatory factor analysis of results from 367 ninth-grade students. Evidence supports a three-factor model. Interrelationships among the constructs are examined, and use of the instrument is discussed. (SLD)

Discusses the development of a scale to measure variables that may have an effect on teacher's affective attitudes towards computer-assisted language learning. Both qualitative and quantitative methodologies were used in the development of the scale to ensure its validity and reliability. (13 references) (Author/CK)

In a study with 13 social work and counseling interns, field supervisors' ratings of students' field performance were compared to an independent judge's content analysis of performance. Results revealed significant correlations between the evaluations, providing evidence of validity of the supervisors' assessments. Validity may have been enhanced…

High school graduates in regular (n=280) and special education (n=223) and their parents were interviewed. Parent-student agreement percentages were high for the variables of attending postsecondary school, employment status, type of residence, marital status, and number of children. Low agreement rates were obtained for salary level, hours…

Presents a comprehensive review of validity that includes an empirical evaluation of the actual and potential consequences of score interpretation and use, how those consequences come about, and what determines them. Six distinguishable aspects of construct validity are highlighted as a means of addressing central issues implicit in the notion of…

The Enabling Practices Scale was developed to measure the level of empowering practices used by employment organizations serving individuals with disabilities and was tested with 127 Australian parents who have adult children with intellectual disability. Factor analysis revealed three factors: comfort with parent-staff relationship,…

Considers the interrater reliability of certified testers in five European languages, the relationship between interviewer-assigned ratings and second ratings based on audio replay, interrater reliability as a function of proficiency level, effect of different languages on interrater agreement, and interrater disagreements with regard to…

Reviews research on elementary school pupils' ratings of teacher effectiveness. Concludes adequate research exists to generalize that pupils can rate reliably, pupils may be no more vulnerable than others to rating leniency and halo, psychometric characteristics and factor structures of rating scales resemble those of college students,…

The Self-Expressiveness in the Family Questionnaire is introduced as a measure of emotional expressiveness. Four studies involving 499 mothers and 362 fathers provided evidence of good convergent, discriminant, and construct validity for the instrument and a preliminary short form. Factor analyses support a two-factor solution across the studies.…

The role of assessment in science education is explored, focusing on summative assessment in British public certificate examinations. Examples of test items are presented to illustrate difficulties in making valid and reliable assessments, and issues with implications for formative assessment are discussed. (SLD)

The use of a performance-based assessment of senior medical students' clinical skills utilizing standardized patients was evaluated, with 6,804 student-patient encounters involving 405 students over 6 years. Results provide evidence for test security, content validity, construct validity, reliability, and test ability to discriminate a wide range…

A total of 102 university English majors were administered 4 different language tests to form a General Language Proficiency measure against which the C-test was evaluated. Results confirmed its reliability and validity and also provided data on text difficulty/appropriateness, word structure, content, and different scoring methods. (13…

The "Students Evaluation of Educational Quality" is an instrument measuring dimensions of college teaching effectiveness. A study showed that, for ratings of 123 instructors in 3,079 classes over 13 years, each instructor has a distinct profile of ratings that generalizes over time, different courses, and course level. (Author/MSE)

A procedure is described for estimating the reliability and conditional standard errors of measurement of scale scores incorporating the discrete transformation of raw scores to scale scores. The method is illustrated using a strong true score model, and practical applications are described. (SLD)