do paired test scores increase or decrease sub scores? does shapiro-wilk test have a significant effect on ssi does wilcoxon test show significant difference in score wilcoxon test differences do wilcoxon test test for a change in score does wilcoxon test show significant improvement how can i tell if the difference between pre test and post scores will be significant? does the wilcoxon test show a significant improvement in scores which test results in significant improvement in post score? can wilcoxon scores be paired how does the wilcoxon test work what is the confidence intervals between post scores is wilcoxon test significant is the paired wilcoxon test significant which wilcoxon test is significant does the wilcoxon test show significant changes in scores what is the difference between wilcoxon test and paired t-test what is the difference between wilcoxon test and shakro wilk test? wilcoxon test difference pre test is it statistically significant to improve posttest score?