I've only ever studied for two tests, because I was absent from school for a month or so I ended up missing a lot the work covered in the class, so I had to study to catch up. I managed to get full marks on the first one, but came a few marks short of the highest grade on the second one. Even after seeing I could get higher grades if I studied, it still didn't motivate me to study for anything else, haha. Although I'm happy with the grades that I got. I hate studying, but when I do decide to study (aka. just twice) I like to do it thoroughly.