We used the Mann-Whitney U
test or Wilcoxon rank-sum test (Hart, 2001) which is a non-parametric alternative test to the independent sample t-test.
First, the Mann-Whitney U
test was used to analyze the data.
Evaluation of the statistical significance between mean ranks of different parameters of two groups were performed using Mann-Whitney U
Table 4 shows the mean ranks of each of the five skills found to be significant through the Mann-Whitney U
To explore the impact of demographic factor (professional qualification), Mann-Whitney U
Proportions were calculated for different options and among male and female differences in opinion Mann-Whitney U
test was applied.
As seen in the Table 1, the Mann-Whitney U
test results show that the fluent writing levels of the 5th and 6th grade pupils differ significantly depending on whether they are placed in setting with or without music (U=69,500, p<.
The reason why an experimenter uses Kruskal-Wallis and Mann-Whitney U
tests instead of ANOVA and t-tests is decided by what kind of data they are examining.
For a pair-wise comparison of qualitative data, the chi-square and Fisher's absolute chi-square tests were run, whereas the Mann-Whitney U
test was used for the pair-wise comparison of quantitative and non-normally distributed data.
Table 1 Test statistics--Physical activity index -final Physical activity index--final Mann-Whitney U
0,000 Z -5,542 P (bilateral testing) 0,000
Maximum; ([dagger])(a) For comparisons between males and females within age groups, Mann-Whitney U
test was used and Bonferroni corrected values of p<0.
Yas, cinsiyet, glokom tipinin ve ilac kullanim sayisinin bleb morfolojisi uzerinde bir etkisi saptanmadi (sirasiyla; p=0,746; Mann-Whitney U
testi, p=0,06; Ki kare testi, p=0,405; Ki-kare testi ve p=0,547; MannWhitney U testi).