Levene

Levene's test is a statistical method used to determine if different groups in a study have similar or different levels of variability or spread—essentially, how consistent or dispersed the data points are within each group. It's useful because many other statistical tests assume that groups have equal variability; Levene's test helps check this assumption. If the test indicates significant differences in variability, researchers may need to adjust their analysis or interpret results carefully, ensuring more accurate conclusions about the data.