Not accurate enough for school assignments. Anyone can edit, or at least used to be able to edit

Wikipedia has been rated ~80% vs Encyclopedias’ ~ 96%

Overall, I think it depends on what it is you’re researching. The more scholarly, academic entries have been found to be on par with some medical libraries, whereas pop culture entries can be prone to inaccuracies. 🤷‍♀️

Their information is about 90% accurate.

Just know wikipedia isn't valid source for rrl.

Anyone can edit that site, so draw your own conclusions. I have seen several serious factual errors on a few pages, and/or authorship by people unfamiliar with the subject's vernacular.