Abstract
The non-parametric modality tests are widely and frequently used in finance, social, medicine, natural and
biological sciences. In this study, we discuss the four non-parametric tests including Hartigan DIP (HD), Silverman’s
bandwidth (SB), proportional mass (PM), and excess mass (EM) tests for modality and multimodality. However, these
tests have not been compared based on the size of the literature. Hence, this study compares these tests about the size
and finds that which of them is the best test.
