Comment below average? (Score 2) 291
I wonder if chewing bubble gum would also impact a below average student's exam scores. Seems like minimize the distractions from sex, alcohol, and cannabis would tend to help most below average students.
Also, if you can only smoke in these Dutch coffee shops, and spend all your time there instead of in your apartment or dorm, then less studying might explain away some of the exam scores.
But despite the above concerned, I think most of us all assumed that there is some cognitive impact while someone is using cannabis. The debate has always been if this is temporary or is the impact long term. I tend to find a lot of holes in research that shows the negative impact to be long term. I have a hunch that there could be some neutral impact that is long term (changes but not detrimental), but that has been rather tough to measure.
(researching comfortably from my armchair)