Reading Comprehension Scores. Analytic Summary Scores. All seven students made
gains in analytical scores for reading summary from baseline to posttest (See Table 1). Student
established stable baseline with mean scores ranging from 2.1 to 4.3. All posttest scores were
higher than all baseline scores with mean scores ranging from 9.3 to 11.3. Thus, the percent of
non-overlapping data (PND) was 100%. (PND is often considered in multiple baseline design as a
measure of overall magnitude of effects analogous to effect size in group designs.) Scores were