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The Order of Experimental Manipulations
| List | Study instructions | Test type | Critical feature |
|---|---|---|---|
| 1 | No warning | R–K–N (discrimination not required) | Font (or plurality) |
| 2 | No warning | O–N (discrimination required) | Font (or plurality) |
| 3 | Warning | O–N (discrimination required) | Plurality (or font) |
| 4 | Warning | R–K–N (discrimination not required) | Plurality (or font) |
Note R–K–N = remember–know–new recognition; O–N = old–new recognition.
