Cluster Randomized Solomon Four-Group Design
The cluster randomized Solomon four-group design combines cluster randomization — assigning intact groups such as schools, clinics, or communities to conditions — with the Solomon four-group structure that isolates the effect of pretesting. Four clusters (or sets of clusters) are created: two receive the treatment and two serve as controls, with only one treatment cluster and one control cluster receiving a pretest, while the others go straight to the posttest. This structure simultaneously controls for pretest sensitization and the logistical constraint that individual randomization is infeasible.
Izvorni zapis
Citati kopirani doslovno iz izvornog zapisa metode. Ne impliciraju nikakvu provjeru na razini tvrdnje.
- Solomon, R. L. (1949). An extension of control group design. Psychological Bulletin, 46(2), 137–150. · DOI 10.1037/h0062958
- Murray, D. M. (1998). Design and Analysis of Group-Randomized Trials. Oxford University Press. · ISBN 978-0195100877
Uređene tvrdnje
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Povezane metode
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