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| Single-blind AB Design× | Enkeltblindet Randomiseret Kontrolleret Forsøg× | |
|---|---|---|
| Fagområde | Forsøgsdesign | Forsøgsdesign |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1960s (AB methodology); blinding adaptation in single-case research developed from 1970s onward | 1948 (formalized); single-blind variant established in mid-20th century clinical trial methodology |
| Ophavsperson≠ | Murray Sidman; Baer, Wolf & Risley (AB logic); blinding conventions adapted from clinical trial methodology | Bradford Hill and colleagues (MRC streptomycin trial, 1948); blinding conventions codified in CONSORT guidelines |
| Type≠ | Single-subject experimental design with assessor masking | Experimental design — blinded randomized trial |
| Oprindelig kilde≠ | Kazdin, A. E. (2011). Single-Case Research Designs: Methods for Clinical and Applied Settings (2nd ed.). Oxford University Press. ISBN: 9780195341881 | Schulz, K. F., Altman, D. G., Moher, D., & CONSORT Group. (2010). CONSORT 2010 statement: Updated guidelines for reporting parallel group randomised trials. BMJ, 340, c332. DOI ↗ |
| Aliasser≠ | assessor-blind AB design, single-masked AB single-case design, observer-blind AB phase design | single-masked RCT, single-blind RCT, single-blind trial, SB-RCT |
| Relaterede≠ | 6 | 5 |
| Resumé≠ | 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. | A single-blind randomized controlled trial (SB-RCT) is a rigorous experimental design in which participants are randomly assigned to treatment or control conditions while remaining unaware of which condition they have received. Investigators, outcome assessors, and data analysts are not blinded. By masking participants, the design eliminates placebo and nocebo response biases on the participant side, while preserving investigator flexibility to administer and monitor the intervention. |
| ScholarGateDatasæt ↗ |
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