I would like to thank both my supervisors Per Jensen and Pernilla Foyer for everything they have helped me with during my thesis and that I was able to be a part of this research. I also like to thank Erik Wilsson at the Swedish Armed Forces for trying to answer all my questions and Mikael Pounu at the Swedish Armed Forces for helping me to get in contact with the consultants. I dedicate my thanks to the consultants for handing the questionnaires to the puppy raisers and then sending the questionnaires back to me, and to the puppy raisers who answered the questionnaire. Next I would like to thank James A. Serpell and Kenth Svartberg for letting me use C-BARQ, and a special thanks to James A. Serpell for answering my questions concerning the questionnaire.