Mann-Whitney test

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Mann-Whitney test

[¦man ′wit·nē ‚test]
(statistics)
A procedure used in nonparametric statistics to determine whether the means of two populations are equal.
References in periodicals archive ?
After calculating the total number of half-entries, we used the Mann-Whitney U test to determine whether differences existed over time and between trap types.
Underwater video surveillance of American lobsters (Homarus americanus) to understand saturation levels in lobster traps
Kruskal-Wallis and Mann-Whitney U tests were used to assess pattern of injury and type of teeth involved.
PATTERN AND CAUSES OF TRAUMATIC INJURIES TO PERMANENT TEETH IN CHILDREN OF AGE 7 TO 14 YEARS
The Mann-Whitney U test was calculated for the scores of CBCL in withdrawn tendency aspect of children with unintentional poisoning and without poisoning.
AN ANALYSIS OF BEHAVIOURAL CHARACTERISTICS IN CHILDREN WITH UNINTENTIONAL POISONING
Comparison of all the latest thresholds yielded a significant difference (p<0.05, Mann-Whitney U test) between the 12th hour group (20 dB nHL) and the other two groups (10 dB nHL in the 24th hour group and 10 dB nHL in the 28th day group) and between the 24th hour (10 dB nHL) and the 28th day (10 dB nHL) groups (Figure 1).
Changes in Proinflammatory Cytokines in the Cochlea in Relation to Hearing Thresholds in Noise-Exposed Rats
Mann-Whitney U test. online] [cited 2017 March 17].
Comment on Ahsan Ali Syed et al (J Pak Med Assoc 2017; 67: 400-404) Frequency of worsening liver function in severe dengue hepatitis patients receiving paracetamol: A retrospective analysis of hospital data
For the Mann-Whitney U test to be applied, the following assumptions were met: (a) a coincidence of the sample; and (b) independence of the observations.
Body-Tanning and Its Relationships to Weight Management and Plastic Surgery
Post-hoc Bonferroni-corrected Mann-Whitney U tests of baseline characteristics for the abortion subgroups revealed no significant differences between subgroups for mean age, gestational age, number of pregnancies, and number of previous abortions (p>0.05), although the number of births was significantly higher in the incomplete abortion group than in the complete abortion group (p<0.05).
Are There any Predictive Values of Mean Platelet Volume (MPV) and MPV/Platelet Count Ratio in Patients with Spontaneous Abortion?
Using a Cell Counting Kit-8 assay, viability of cells derived from the knee synovium was significantly higher than that of cells derived from the hip synovium (knee versus hip, 100% versus 88.4%, P < 0.01, Mann-Whitney U test) (Figure 4(b)).
Isolation and Characterization of Synovial Mesenchymal Stem Cell Derived from Hip Joints: A Comparative Analysis with a Matched Control Knee Group
fT3 and fT4 concentrations did not significantly differ between children who did or did not show catch-up growth (mean hormone concentration (SD); fT3: 6.9 (0.7) versus 6.7 (0.7)pmol/l, p = 0.277; fT4: 16.0 (2.1) versus 16.3 (1.5) pmol/l, p = 0.628; Mann-Whitney U Test with Bonferroni correction, adjusted significance level [alpha] = 0.007).
Former Very Preterm Infants Show Alterations in Thyroid Function at a Preschool Age
The Student t-test was used to compare the mean age while the Mann-Whitney U test was used to compare the medians of CD4 cells, interleukin-6, and interleukin-10.
Immune Dysfunction in HIV: A Possible Role for Pro- and Anti-Inflammatory Cytokines in HIV Staging
Table 3 shows the test statistics for significance (p <.05) utilizing the Mann-Whitney U test.
School Principals as Effective Change Agents: A Study of Essential Skills and Attributes
Mann-Whitney U test is used to compare the difference between two independent groups when the dependent variable is either ordinal or continuous but not normally distributed.
Study of Professional Qualification: Impact on the Use of Competency Based Teaching Methodology
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