Wilcoxon Signed-Rank Test using SPSS Statistics Introduction The Wilcoxon signed-rank test is the nonparametric test equivalent to the dependent t-test. As the Wilcoxon signed-rank test does not assume normality in the data, it can be used when this assumption has been violated and the use of...
The first table contains all statistics that are required to calculate the Wilcoxon signed ranks test’s W. These are the sample size and the sum of ranks. It also includes the mean rank, which is not necessary to calculate the W-value but helps with the interpretation of the ...
MemberDr.SmithDr.JonesA12B12C12D12E21F12G1.51.5H12I12J121.Logontosystem2.ClickStart>Programs>SPSSforWindows>SPSS10.1forWindows.Atthispointawindowwillappearaskingyouwhatyouwouldliketodo.ClickonthecirclenexttoTypeinData(2ndoptioninlist)andthenclickOKatthebottomofthewindow.3.ADataEditorwillappear.Lookinthe...
Table 3. Monthly results of runs homogeneity test. Inhomogeneity in a time series can distort the interpretation of extreme events and trends, often resulting in abrupt changes in the mean [50]. The consistent test results underscored the importance of addressing inhomogeneity in monthly flow serie...