SPSS is an advanced software used for statistical data analysis. Originally developed for the social sciences, it is now widely used in various fields such as medicine, psychology, economics, and marketing. SPSS allows users to perform a wide range of statistical analyses, including descriptive statistics, t-tests, ANOVA, regressions, survival analysis, and factor analysis. It is known for its user-friendly interface, which enables users to conduct analyses without needing to write code.