Psychology 216 Data Analysis 4 Andrzejewski 1 of 1 Psychology 216 Data Analysis 4 Data Analysis 4 Instructions and Guidelines Overview/Goal: to review and perform an analysis of data from a multiple-baseline, small-n design, utilizing graphical, numerical and descriptive summaries of data. (textbook pp. 383-386) Details: you should submit a brief report with figures answering the questions posed here. A teacher used a new teaching method for addressing two needs in her special education classroom: 1) word identification and 2) solving simple math problems. After assessment, she found that her four student's performances varied quite a bit. She elected to do a multiple baseline study, across both individuals and across behavior. The teacher reasoned that a reversal design would not be appropriate here because students are unlikely to "unlearn" the skills they learned in the prior phase during a return to baseline. Thus, she acquired baseline performance measures for both reading and math for each of the 4 students. #words: number of words correctly identified on a sample of 50 words on 10 min test #math: number of simple arithmetic problems solved correctly out of 50 on 10 min test When their baselines (BL) appeared stable, the teacher began the intervention (INT). She continued to collect test data, each session, for 30 total sessions. Individual data are presented below. Did the intervention work? How so? Are there any caveats? Any limitations? (Data are on next 2 pages for Ally, Bobby, Chris, and David) Ally Session Phase words 5 BL Andrzejewski 1 of 1 Psychology 216 Data Analysis 4 Chris David # # Bobby Session Phase words #math Session Phase words # math # # 1 BL 14 2 11 #math Session Phase words #math 2 BL 18 2 BL 6 15 1 BL 10 3 1 BL 4 10 3 BL 21 4 3 BL 7 12 2 BL 14 0 2 BL 8 13 4 BL 13 4 BL 1 15 3 BL 8 2 3 BL 9 14 5 BL 15 1 5 BL 5 21 4 BL 12 5 4 BL 12 6 BL 12 6 6 BL 3 23 11 2 5 BL 6 11 7 BL 10 5 7 BL 5 11 6 BL 3 6 BL 2 8 BL 9 4 8 BL 14 7 INT 11 3 7 BL 0 16 9 BL 2 7 9 BL 6 12 8 INT 15 6 8 BL 18 10 BL 10 8 10 BL 13 9 INT 17 2 9 BL 3 12 11 BL 21 9 11 BL 5 14 10 INT 13 3 10 BL 3 13 12 BL 22 2 12 INT 5 7 11 INT 19 4 11 BL 15 13 BL 20 3 13 INT 2 12 INT 21 1 12 BL 3 14 14 BL 17 6 14 INT 8 24 13 INT 22 5 13 BL 10 15 BL 20 3 14 INT 26 3 14 BL 15 23 16 BL 18 3 16 INT 3 12 15 INT 21 2 15 BL 23 27 21 3 17 INT 11 16 INT 22 5 16 BL 29 24 18 BL 19 5 18 INT 7 7 17 INT 17 3 17 INT 23 21 19 INT 41 9 19 INT 6 14 18 INT 21 4 18 INT 28 20 INT 44 20 INT 6 18 19 INT 26 6 19 INT 21 24 21 INT 45 10 21 INT 11 7 20 INT 23 1 20 INT 31 22 INT 47 14 22 INT 12 3 21 INT 28 1 21 INT 34 22 23 INT 42 19 23 INT 14 13 22 INT 31 1 38 29 24 INT 39 24 INT 23 INT 29 2 23 INT 31 26 25 INT 44 16 25 INT 26 3 24 INT 24 0 24 INT 30 27 26 INT 45 14 26 INT 9 25 INT 29 4 25 INT 40 25 27 INT 41 19 27 INT 24 19 26 INT 32 6 26 INT 45 28 28 INT 46 21 28 INT 25 4 27 INT 31 4 27 INT 47 29 INT 47 29 INT 27 12 28 INT 30 2 28 INT 44 27 43 12 29 INT 32 3 42 30 INT 31 4 30 INT 43 25 Andrzejewski 1 of 1