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Second, the hypothesis test and effect size were not conclusive.
Besides, the hypothesis test and effect size were not conclusive.
Differences across five performance groups (ranging from 'worst' to 'best') were tested using an ANOVA test and effect sizes were measured with omega squared.
For the primary outcome, the Wilcoxon signed rank test and effect sizes (Cohen's d) was used to determine the statistical significance of the change from baseline total PCL-M and Total BDI score at each follow-up time point (t2, t3, t4).
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Previous studies utilized both significance tests and effect size estimates to explore source of DIF.
To this end, differences between age cohorts were tested with two-tailed unpaired Welch's t-tests and effect size was determined using Cohen's d.
The next most responsive measure was the FHSQ function subscale (borderline paired t-test and effect sizes ranging from small to very large).
Overall, the FHSQ pain subscale exhibited the highest responsiveness, as evidenced by a highly significant paired t-test and effect sizes ranging from medium to huge.
= non-significant Independent sample t-test and effect sizes for gender differences; paired sample t-tests for differences in means between 8,154 matched cases.
QOL domain scores of the caregivers (as a group) were compared with those of the matched general population group using independent sample t-test and effect size calculations.
For the second and third objectives, we used t-test and effect size to compare scores in child outcome variables, between those whose parents had PTSD and those whose parents did not have PTSD.
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