The analysis of data, or numbers, is my great passion. By analysing data, sometimes combined with models, we can try and observe patterns and maybe understand them or even make predictions on their development. However, data as such is worthless without the proper know-how, or theory, on how the system works. Without this know-how it is impossible to say something useful about real causal relationships that go beyond statistical significance. Data analysis and the proper know-how are at the heart of my work, whether it be in academia, consulting or training.
-- Paul Hiemstra