Experimental process
| Observations | First treatment | Observations | Second treatment | Observations | ||
|---|---|---|---|---|---|---|
| R | Group 1 (G1) | O0 | X(s) | Os | X(e) | Oe |
| Group 2 (G2) | O0 | X(e) | Oe | X(s) | Os | |
| Observations | First treatment | Observations | Second treatment | Observations | ||
|---|---|---|---|---|---|---|
| R | Group 1 (G1) | O0 | X(s) | Os | X(e) | Oe |
| Group 2 (G2) | O0 | X(e) | Oe | X(s) | Os | |
Note(s): R … random assignment; Gx … sequence of treatments according to the “type of notation”; O … observations; X … treatments; X = {s … standardized notation, e … extended notation}
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