Three things are important when making that choice: \r\r \r Your schedule availability. The cohesion of a lengthy training program hinges on the priority you can or do give to it. If your schedule is full, a half-day language program is less likely to be effective. In such a case, a crash course provides greater focus and obvious priority. \r The nature of the subject matter. If you are in the preparatory phase for an important presentation, a training set up in half-days is more appropriate than a whole week. If you want to master a broader range of topics and especially if, in addition to language, psychological or cultural factors also come into play (e.g. fear of speaking, dealing with Dutch business culture), a crash course offers more depth and more intensive coaching. \r The speed with which you learn a language. If you have little experience with learning a language or if you know from experience that you need a long time to master a language, a lengthier program is the obvious choice. But if avoidance behaviour is at the root of your slow speed, a crash course is more appropriate. During an intensive week it is practically impossible to continue to avoid certain linguistic or cultural problems. Instead, you address the problem directly. \r \r