ANOVA revealed a significant main effect of dose [ F 3, 51) = 3.12; p < 0.0337], and mean contrast tests supported the conclusion of an augmented PS LTP in the 1,000-ppm 1,000-ppmte grouperchlorates t, p < 0.05).
Bonferroni tests were used to do mean contrasts following ANOVA.
When significant effects of dose were obtained, mean contrast tests were conducted using Dunnett's t statistic.
Mean contrast tests within the mixed model regression analysis were used to obtain estimates of the P-values for this comparisons.
Mean contrast tests indicated that this reduction in T3 was evident at the 300- and 1,000-ppm 1,000-ppmps (doseett's t, p < 0.05).
Where significant effects were found in hormone measures, mean contrast tests were conducted using Dunnett's t-test (1-tailed tests, α = 0.05) to compare each dose group with control.
Direct group comparisons of particular interest were examined by post hoc least squares means contrasts or paired t-tests.
We performed mean contrast testing using Duncan's new multiple range test (SAS).
* = Significance difference from control in a Dunnett's mean contrast test (p < 0.05).
For probe sets that passed the one-way ANOVA significance threshold, a post-hoc Dunnett's multiple-comparison mean contrast test was performed comparing the means of the respective dose groups to the mean of the control group [ 41].
