So next year i’m applying to Lehigh University Early Decision 1 and I was wondering if I was also allowed to apply Early Action to other schools or if I have to apply Regular Decision?
Depends on the school so you need to go to the Lehigh website and review their ED1 policy. Most will let you at least apply to public state schools early as long as its non binding.
You also need to check the policies of the schools you want to apply to EA. Some don’t let you apply EA if you apply ED somewhere else. Notre Dame has that policy.
Agree, there is no answer that will be correct for every school. You need to do the research and check each school’s website.