There was a small but significant interaction between the two factors, i.e., the main effect of intended tempo does not occur independently of speaker.
Separate two-way ANOVAs were done to unpack the expert and novice groups, which revealed a small but significant interaction between congruency and alignment for experts (F 1,13 = 5.000, MSE = 0.077, p = 0.0435, η p 2 = 0.278).1 We found no significant interaction between congruency and alignment for novices (F 1,14 = 0.564, MSE = 0.080, p = 0.465, η p 2 = 0.039).
In this case, a relatively small but significant interaction between number and luminance emerged.
This is consistent with the less strong, but significant interaction between AR and ErbB2 in our analysis.
In contrast, we did observe a small but significant interaction between age and PON1 -108 genotype (β-estimate for age × PON1 -108 genotype = −54.6, p = 0.022).
There was a small but significant interaction between genotype and cultivation method (Supplementary Data Table S2; F3,47 = 10·30 P < 0·001), attributable to slightly delayed flowering of Ga-0 in mixtures (Supplementary Data Fig. S3; P < 0·01, LSD).
The analysis of interactions showed evidence of small, but significant interactions between smoking and kissing (p = 0.005) and also between smoking and pub or club attendance (p = 0.003).
We found no overall association between PBB exposure and menstrual cycle length or bleed length, but significant interactions between PBB exposure and past year weight loss not related to pregnancy were found for both cycle length and bleed length.
Averaging beta across time points 3 9 s, a three-way anova of classification (happy/fear), task (expression/gender) and region (eyes/mouth) revealed no main effects, but significant interactions between classification and region (F1,8 = 10.2, P = 0.01) and between task and region (F1,8 = 11.4, P = 0.009).
However, this was not evident when interaction terms were included between CKD and BMI (p = 0.79) but significant interaction found between CKD and age (p < 0.001).
In boys but not girls, there was a modest but statistically significant interaction between MAOA and COMT genotypes such that increased prefrontal catecholamine availability was associated with better working memory.
