Using the Delphi method and non-parametric tests in pedagogical research

The application of statistics in research is linked to the measurement, analysis and evaluation of the empirical inquiries made on some phenomenon or process under study. There are many researchers who need help in order to apply the statistics in their research; that is why, we selected the Delphi method and some nonparametric tests that appear in the investigations more frequently, to explain the basic procedure of each of them with and without the use of the statistical package "Statistical product and service solutions" (SPSS Statistics) version 22 of 2011.