A study reported a positive association between using marijuana as a teen and having troubled relationships between ages 25 and 30. Based on this research should we conclude that teenagers’ use of marijuana leads to relationship problems during the latter half of their 20s? Explain.

Since the research shows a positive relationship, we conclude that use of Marijuana as teenagers affects the relationship of most people in their late 20s

Explanation:

Most research is done by carefully collecting data and then carefully analyzing the data with accepted, up-to-date analyzing tools while trying to minimize error to the barest minimum, if not totally reducing error. Most scientifically proven theorems and fact were accepted when seen to follow a strict relationship when tested over time. So, yes, if a positive association exists between teenager's use of Marijuana and later relationship trouble in their late 20s, then there is a big chance that this happens most of the time.