Stratum Opti is a young, adaptable and educated team that, with its own knowledge, competencies and creativity, strives to satisfy all the wishes of its subscribers. They work in all areas of statistical analysis and data processing, as well as translation and proofreading of any texts. Statistics are therefore an indispensable tool for research in all fields of science, and their knowledge is needed to understand professional literature and often news. With the SPSS software package, we provide you with basic and advanced statistical analysis to help you solve problems, make wiser decisions and improve your results.