Figure 1
Effects of irrelevant speech on error rates per sound type condition (changing state vs. steady state vs. silent control condition) and serial position (1–7) in the spatial task condition of Experiment 4 by Jones et al. (1995; left panel) and the present replication study (right panel).
Table 1
Effects sizes and test statistics of Jones et al. (1995) and of the present replication study.
| Effect or comparison | Jones et al. (1995) | Replication | ||
|---|---|---|---|---|
| Effect Size | Test statistic | Effect size | Test statistic | |
| Main effect of sound type | η2p = .27 | F(2, 68) = 12.36, p < .001 | η2p = .020 | F(2, 78) = 0.807, p = .450 |
| Difference between changing and steady state conditions | η2p = .16 | F(1, 68) = 12.78, p < .001 | η2p = .037 | t(39) = –1.222, p = .229 |