Operational testing programs employing item response theory (IRT) applications benefit from of the property of item parameter invariance whereby item parameter estimates obtained from one sample can be applied to other samples (when the underlying assumptions are satisfied). In theory, this feature allows for applications such as computer-adaptive…

The purpose of this ex post facto study was to explore the interactive relationship among grade level of transition to high school, gender, and grade level of dropping out of high school as factors associated with high school dropout rates. Fifteen schools at each of the most common high school grade spans were studied, for a total of 45 schools.…

This study compared Stanford Achievement Test (SAT-9) academic subtest scores by students' grade, gender, and ethnicity and across different educational programs (e.g., Title I and special education). The study sample consisted of 144,701 students from public schools in a large city in the Southwest United States (grades 1-11). Raw data were taken…

An investigation to determine whether reading disabled children exhibit deviant oral language behaviors was undertaken in a study of 103 children in second, fourth, and sixth grades (in two groups, one reading disabled, one control). Four dependent measures (Developmental Sentence Scoring, Mean Length of Utterance, Type Token Ratio, and verbal…

The effect of two student characteristics (sex and grade point average) and two class variables (educational level and expected grade) were investigated as they pertain to the validity of college student ratings of teaching effectiveness. Students completed the Teacher Effectiveness Questionnaire (TEQ) the last week of the semester. The TEQ…