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| Single-Blind ABA-Design× | Single-Blind AB-Design× | |
|---|---|---|
| Fachgebiet | Versuchsplanung | Versuchsplanung |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1968 (ABA design); single-blind adaptation developed through 1970s–1980s clinical behavioral research | 1960s (AB methodology); blinding adaptation in single-case research developed from 1970s onward |
| Urheber≠ | Montrose Wolf, Donald Baer, Todd Risley (ABA tradition); single-blind masking adapted from clinical trial methodology | Murray Sidman; Baer, Wolf & Risley (AB logic); blinding conventions adapted from clinical trial methodology |
| Typ≠ | Single-subject experimental design with assessor blinding | Single-subject experimental design with assessor masking |
| Wegweisende Quelle≠ | 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 ↗ | Kazdin, A. E. (2011). Single-Case Research Designs: Methods for Clinical and Applied Settings (2nd ed.). Oxford University Press. ISBN: 9780195341881 |
| Aliasnamen≠ | single-blind reversal design, single-masked ABA design, single-blind withdrawal design, assessor-blind ABA design | assessor-blind AB design, single-masked AB single-case design, observer-blind AB phase design |
| Verwandt≠ | 5 | 6 |
| Zusammenfassung≠ | The single-blind ABA design combines the three-phase reversal logic of the ABA single-subject design — baseline (A1), intervention (B), and withdrawal (A2) — with single-blind masking, in which outcome assessors are kept unaware of the current phase or treatment condition while the participant and intervention team remain aware. This blinding reduces observer bias in behavioral measurement across the three phases. | The single-blind AB design is a single-subject experimental design that combines the two-phase AB structure — a baseline phase (A) followed by an intervention phase (B) — with assessor or observer masking. The individual collecting or rating outcome data is kept unaware of which phase is being measured, preventing knowledge of treatment status from biasing behavioral observations or ratings. The design improves on the standard AB design by reducing detection bias while retaining the practical and ethical advantages of single-subject methodology. |
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