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| 블록형 AB 설계× | 다중 기저선 설계× | |
|---|---|---|
| 분야 | 실험설계 | 실험설계 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 1970s–1980s (systematic development of blocked randomization in single-case research) | 1968 |
| 창시자≠ | Based on Fisher's randomized block principle (1926) applied to single-case AB designs | Donald M. Baer, Montrose M. Wolf, Todd R. Risley |
| 유형≠ | Single-subject experimental design with blocking | Single-subject experimental design |
| 원전≠ | Edgington, E., & Onghena, P. (2007). Randomization Tests (4th ed.). Chapman and Hall/CRC. ISBN: 978-1584885894 | Baer, D. M., Wolf, M. M., & Risley, T. R. (1968). Some current dimensions of applied behavior analysis. Journal of Applied Behavior Analysis, 1(1), 91–97. DOI ↗ |
| 별칭 | blocked AB single-case design, randomized block AB design, AB design with blocking, blocked baseline-treatment design | MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design |
| 관련≠ | 6 | 4 |
| 요약≠ | The Blocked AB Design applies the logic of randomized block experimental design to the classic single-subject AB framework. Observation sessions are organized into blocks — matched sets of time points or contextual units — and the assignment of baseline (A) and treatment (B) phases is randomized within each block. This controls for nuisance time-based variability while preserving the interpretive simplicity of the fundamental two-phase single-case structure. | The multiple baseline design is a single-subject experimental design that demonstrates functional control by introducing an intervention at staggered time points across two or more baselines — typically across different behaviors, individuals, or settings. Because no withdrawal of treatment is required, it is especially suitable when the target behavior is irreversible or when removing an effective intervention would be unethical. |
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