Effects of curriculum within curriculum-based measurement.

This study assessed the effects of curriculum on technical features within curriculum-based measurement in reading. Curriculum was defined as the difficulty of material and the basal series from which students read. Technical features were the criterion validity and developmental growth rates associated with the measurement. Ninety-one students took a commercial, widely used test of reading comprehension and read orally for 1 minute from each of 19 passages, one from each grade level within two reading series. Correlations between the oral reading samples and the test of reading comprehension were similar across difficulty levels and across series. Developmental growth rates also remained strong regardless of difficulty level and series.