The other estimates for the effects of PRO and DEX on the ACE subscales were not statistically significant using a significance level of 0.05.
Paired t-tests were also employed to further explore the significant interactions using a significance level of P < 0.05 (Bonferroni corrected).
Of all significant predictors of ITL (using a significance level of 10%), two variables that were independent from each other could be included.
Stable isotope compositions were compared using Student's t tests to test for a significant difference between the two sites using a significance level of 0.05 (Zar 1999).
Publication bias was assessed through Egger and Begg tests, using a significance level of P < 0.05 to indicate significant asymmetry (20, 21).
The publication bias was estimated by Begg's test [ 13] and Egger's test [ 14], using a significance level of P < 0.05 to indicate significant asymmetry.
Using a significance level of α = 0.05 indicates that both rank correlations are statistically significant implying that, e.g., high out-degrees correspond to high values of D i.
The Williams tests were performed with the Community Analysis computer program, version 4.3.0544, using a significance level of 0.05.
All statistical comparisons were based on a two-sided test using a significance level of 5%.
Group comparisons were performed by comparing the respective 95 % CIs using a significance level of 5%%.
All statistical procedures were performed using IBM SPSS™ software (version 22.0, SPSS, Armonk, NY) using a significance level of 0.05.
