Jämför metoder
Granska de valda metoderna sida vid sida; rader som skiljer sig är markerade.
| Blocked Pretest-Posttest Experimental Design× | Experimentell design med förtest och eftertest× | |
|---|---|---|
| Ämnesområde | Försöksplanering | Försöksplanering |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1935 (blocking, Fisher); 1963 (pretest-posttest + blocking synthesis, Campbell & Stanley) | 1963 (formalized in Campbell & Stanley) |
| Upphovsperson≠ | Donald T. Campbell & Julian C. Stanley (systematized); blocking technique from Ronald A. Fisher | Donald T. Campbell and Julian C. Stanley |
| Typ≠ | Experimental design | Experimental / quasi-experimental research design |
| Ursprungskälla | Campbell, D. T., & Stanley, J. C. (1963). Experimental and Quasi-Experimental Designs for Research. Rand McNally. link ↗ | Campbell, D. T., & Stanley, J. C. (1963). Experimental and Quasi-Experimental Designs for Research. Rand McNally. link ↗ |
| Alias | blocked pre-post design, RBPP design, block-randomized pretest-posttest design, randomized block pre-post control group design | pretest-posttest design, before-after design, pre-post design, two-wave experimental design |
| Närliggande≠ | 6 | 5 |
| Sammanfattning≠ | The blocked pretest-posttest experimental design combines blocking — grouping participants into homogeneous strata before randomization — with pre- and post-intervention measurement. Blocking controls for known sources of variability (e.g., baseline ability, gender, site), while the pretest-posttest structure quantifies change scores directly. Together, they reduce error variance and increase statistical power compared to a simple pretest-posttest design, making this approach well suited to educational, clinical, and behavioral intervention studies. | The pretest-posttest experimental design measures participants on the outcome variable before and after treatment, typically with random assignment to treatment and control groups. The difference between pre- and post-scores isolates the treatment effect from baseline variation, making this one of the most widely used frameworks in experimental and quasi-experimental research across education, psychology, medicine, and the social sciences. |
| ScholarGateDatamängd ↗ |
|
|