Group comparisons on measures of single word and contextual fluency. Note. Within-sample z scores demonstrate the different patterns between isolated and contextual fluency measures for different reader profiles. (For the TOWRE and GORT analysis, standardized scores, not within-sample z scores were used; however, as expected, results were the same when the analysis used within-sample z scores.) TOWRE = Test of Word Reading Efficiency, Standard Scores; GORT = Gray Oral Reading Test Fourth Edition; AVG = average readers; WRD = poor decoders; S-RCD = poor comprehenders.