It was observed that eight out of the observed tests had technical issues and that many of the participants asked for help during the test.. The technical issues were mostly in the beginning due to the use of an online questionnaire where the user had to press alt + tab to go between the question- naire and the film, which confused many participants. For some of the participants the media player bugged and played the same clip again, forcing the observer to intervene. These technical distractions break the test participants concentration and could cause them to forget aspects of what they had been watching. Many of the test participants needed the observer to better explain some of the questionnaire statements, which suggests that the statements were not clear enough. There was also a mistake on the questionnaire, which was only noticed after a considerable number of participants had been tested, and that was that the speed rating scale was reversed, with very fast being 1 and very slow being 10. This confused many test participants who noticed it and voiced their confusion out loud, leaving the question if those who did not say anything noticed the reversal and paid it heed, or if they did not notice and answered as would be logical. This mistake may have rendered all conclusions pertaining to the speed of the car irrelevant. In the actual animation there were some glitches with the camera movements at higher frame rates which was distracting and possibly the reason why some of the viewers stated that the camera movements were the difference between the clips.