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2010
- handle: 10670/1.lbkoj7
- 0211-2159
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Psicológica
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Inspection by sampling Populations, Human Human populations Population growth Human population Competitive examinations Tests Social inequality Social equality Inequality Egalitarianism Demography DemographicsCiter ce document
David W. Nordstokke et al., « A New Nonparametric Levene Test for Equal Variances », Psicológica, ID : 10670/1.lbkoj7
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"Tests of the equality of variances are sometimes used on their own to compare variability across groups of experimental or non-experimental conditions but they are most often used alongside other methods to support assumptions made about variances. A new nonparametric test of equality of variances is described and compared to current 'gold standard' method, the median-based Levene test, in a computer simulation study. The simulation results show that when sampling from either symmetric or skewed population distributions both the median based and nonparametric Levene tests maintain their nominal Type I error rate; however, when one is sampling from skewed population distributions the nonparametric test has more statistical power."