Evaluating Tau-U With Oral Reading Fluency Data and the Impact of Measurement Error.

This study evaluated Tau-U effect sizes, derived from multiple-baseline designs, where researchers used curriculum-based measures of reading (CBM-R) to measure reading fluency. Specifically, we evaluated the distribution of the summary Tau-U statistic when applied to a large set of CBM-R data and assessed how the variability inherent in CBM-R data may influence the obtained Tau-U values. Findings suggest that the summary Tau-U statistic may be susceptible to ceiling effects. Moreover, the results provide initial evidence that error inherent in CBM-R scores may have a small but meaningful influence on the obtained effect sizes. Implications and recommendations for research and practice are discussed.
PMID: 29528695 [PubMed - as supplied by publisher]

Source: Behavior Modification - March 1, 2018 Category: Psychiatry & Psychology Authors: Klingbeil DA, Van Norman ER, McLendon KE, Ross SG, Begeny JC Tags: Behav Modif Source Type: research