Table 2.
ANOVA results from the SPSS analysis. Note main effect for sampling time and the interaction effect between the sampling time and the stages.
| Effect | Type III Sum of Squares | df | Mean Square | F | Significance |
|---|---|---|---|---|---|
| Sample Time | 152.182 | 2 | 76.091 | 43.67 | < 0.001 |
| Error (Sample Time) | 97.575 | 56 | 1.742 | ||
| Verification | 6.162 | 1 | 6.162 | 0.463 | 0.502 |
| Error (Verification) | 373.322 | 28 | 13.297 | ||
| Sample Time × Verification | 9.194 | 2 | 4.597 | 4.933 | 0.011 |
| Error (Sample Time × Verification) | 52.192 | 56 | 0.932 |
df = degree of freedom.