This study investigated the relative model-data fit of an ideal point item response theory (IRT) model (the generalized graded unfolding model [GGUM]) and dominance IRT models (e.g., the two-parameter logistic model [2PLM] and Samejima's graded response model [GRM]) to simulated dichotomous and polytomous data generated from each of these models.…

Frequency data are reported from a research project aimed at developing the Behavior Observation Scale (BOS), an objective assessment tool for establishing the diagnosis of autism. The goals of the BOS are to differentiate autistic, normal, and mentally retarded children (ages 30 to 60 months) along objective symptom axes involving 67 behaviors.…

REPORTED ARE TWO SEPARATE STUDIES WHICH RELATE THE INTERACTION BETWEEN PARENT AND CHILD TO THE CHILD'S SENSE OF RESPONSIBILITY FOR HIS OWN ACTIONS. IN THE FIRST STUDY 23 BOYS AND 18 GIRLS, 7 TO 12.5 YEARS OLD, WERE TESTED ON AN ACHIEVEMENT RESPONSIBILITY SCALE TO DETERMINE WHETHER THEY JUDGED THEIR SUCCESS OR FAILURE TO BE CAUSED BY SELF-EFFORT OR…

The educational accountability movement has demanded that educators implement and also monitor students' responses to positive behavioral accommodations in schools as well as communicate this information to others. This new responsibility has left many educators struggling with ways to monitor students effectively. This article provides a brief…