SIGNIFICANCE OF LEVENE’S TEST IN RESEARCH METHODOLOGY.
When performing data analysis in research methodology many researchers ignore to ensure the assumptions before performing t-test and ANOVA. Researchers rely on the assumption of normality but the results are not robust to its violation. In 1960, Professor Howard Levene proposed a new approach to this problem by applying the F-test to the absolute deviations of the observations from their group means. Levene’s approach is powerful and robust to non-normality and became a very popular tool for checking the homogeneity of variances. This paper reveals the importance of Leven’s Test in assuming the conditions before performing t-test and ANOVA.
Levene’s Test, Research Methodology, Statistical Test and Assumptions.