By Train:

The best way to reach Groningen is by train. Railway is the most efficient transport system in The Netherlands. Take a train at Amsterdam Schipol Airport to Groningen. There is a direct train from Amsterdam Schipol airport to Groningen every one hour (Every hour past 21 minutes) and with a change over at Amersfoort every one hour (Every hour past 51 minutes). So, there is a train every 30 minutes from Schipol to Groningen. It takes approxiamately 2:40 hrs to reach Groningen from Amsterdam Schipol airport. You can check for timings and any other relevant information at the following dutch railway web site.

By Car:

If you are coming for the first time to Groningen and you think it's difficult to manage your luggage, then the other choice would be to take a shared taxi. This is called Schipol taxi. You need to book this taxi at least one day before your travel date. The cost will be approximately double to that of second class train fare. This taxi will leave you right in front of your student house or room. You can reserve your taxi on line.

From Groningen Train Station:

If you are coming by train, then you need to take a bus from Central station to your place. You can find the bus timings at the following web site: www.9292ov.nl