The means and standard deviations of standard scores on the new Vineland Adaptive Behavior Scales vary considerably from age group to age group in the standardization sample. Thus, different standard scores may reflect the same levels of performance in terms of distance from the mean. (Author/CL)

Tests of achievement in economics have a variety of uses. Their principal role is to evaluate how successful students have been in learning economics on a particular course, either overall or in particular aspects of economics. They may also serve to provide evidence about the efficacy of specific teaching materials and/or strategies. Finally,…

The process of determining test norms and of using them realistically is discussed. This process involves putting meaning into a single test score by relating it to other test scores achieved by other pupils or by the same pupil at other times. The focus of attention is on the meaning of test norms; it is not on the meaning of types of test…

This article describes errors resulting from use of standardized language tests using a "normal" sample as the normative comparison group. Resulting errors include, among others, identifying normal children as language impaired, providing misleading profiles of verbal and nonverbal performance, and inability to determine impairment severity.…

The Title I Evaluation and Reporting System (TIERS) was developed in order to examine the extent to which Title I (now Chapter 1) is remediating the disadvantages in basic skills of educationally deprived children. TIERS Model A contrasts the achievement of Chapter 1 students to publishers' norms for hypothetically comparable groups of students.…

This article discusses the advantages and disadvantages of the Vineland Adaptive Behavior Scales for measuring adaptive behavior in adults with mental retardation. It concludes that the advantages of the coverage of the main domains of adaptive behavior, their standardization, impressive psychometrics, and brevity are becoming outweighed by…

Sixty subjects age 6 to 30 months were assessed with the Bayley Mental Scale of Infant Development (BMSID). Mean scores were substantially higher than standardized norms would predict, indicating that Bayley norms need to be revised, and that strict interpretation of the BMSID may result in misdiagnosis of some infants with developmental…

This article examines whether changes in the ethnic minority composition of the standardization sample for the Peabody Picture Vocabulary Test-III (PPVT-III) can be used as the sole explanation for children's better test scores when compared to an earlier edition. Analysis suggests other factors may explain improved performance. (Contains…

This guide--written for school administrators, teachers, counselors, parents, and the community--describes educational tests and measurements and test-related statistics. While specifically intended to help readers interpret the tests administered in the Los Angeles (California) Unified School District, this information may also be used to…

At the request of the Oklahoma Department of Education, the Technical Assistance Center 3 West conducted a statewide review of local Chapter 1 evaluation data to provide possible explanations for the unusual standardized test score gains or losses reported by a number of local school districts. During the two months of quality control visits, 35…

This study of 12 children (ages 7-13) with mild to moderate bilateral sensorineural hearing loss found that psychoeducational diagnostic tests standardized on students with normal hearing may be used with confidence to assess both cognitive and academic levels of functioning in students with sensorineural hearing loss. (Author/JDD)

Available test score evidence does not support the common claim that student achievement has declined. On the other hand, the existing evidence cannot be used to prove that student achievement has risen. This paper offers reasons why student achievement in the past cannot be compared accurately with student achievement today: (1) tests, curricula,…

Scores on the Wechsler Intelligence Scale for Children-Revised (WISC-R) and Wechsler Adult Intelligence Scale-Revised (WAIS-R) Verbal, Performance, and Full Scales were compared for 26 adolescents with educable mental handicaps. The WAIS-R, while strongly correlated with the WISC-R, provided higher scores on all three scales. Several WISC-R…

Both norm-referenced and criterion-referenced interpretations of student, school, district, and state testing data can be improved by customizing the traditional norm-referenced test. Improvements that can be made include: (1) increasing the relevance of the test to the curriculum and (2) having greater confidence in the national comparative…

The extent to which national performance on an achievement test battery changed over a 4-year period was studied, and the comparative performance of students in school districts taking the test series for the first time was compared with that of students in districts that had used the battery at least once in one or more grades. The seventh…