Table 2.
Fitting Pattern Parameters for Pairs of Standard Sessions
| Standard 1 | Standard 2 | Difference | Paired t | P | |
|---|---|---|---|---|---|
| Grand rate | 1.20 ± 2.05 | 1.24 ± 2.04 | 0.044 ± 0.879 | 0.292 | 0.77 |
| Field rate | 5.11 ± 4.09 | 4.99 ± 4.46 | −0.113 ± 2.50 | 0.420 | 0.68 |
| Centroid rate | 12.5 ± 11.0 | 13.1 ± 13.5 | 0.562 ± 11.8 | 0.442 | 0.66 |
| Size | 678 ± 502 | 739 ± 629 | 61.0 ± 397 | 1.43 | 0.16 |
| Coherence | 1.06 ± 0.28 | 1.01 ± 0.276 | −0.046 ± 0.259 | 1.65 | 0.10 |
| Information | 3.36 ± 1.18 | 3.29 ± 1.24 | −0.062 ± 0.840 | 0.682 | 0.50 |
The first and second standard sessions were separated by a card manipulation session. The mean values for the six parameters did not change in a reliable way between the two sessions, as indicated by the high probability for the paired t test for each parameter. Note that the difference between the parameter means for the two sessions (Standard 1 and Standard 2) is not exactly equal to the mean of the differences (Difference). The same lack of exact agreement between the difference of the means and the mean difference occurs also in Table Table Table Table .