"Scientific Method" is definitely one of those episodes you'd better at least like Star Trek to enjoy, because it was a story that could have been told in any of the series, and in fact was in most of them.
That being said, it's still worth a look, if only for that reason, for comparison by how Voyager tells this particular one, versus how it was done in, say, Next Generation ("Clues," for one), because it's fun to watch (hey, you'll watch a thousand crimes on a given CSI, but you won't do the same for Star Trek?), as aliens experiment on our crew, who tries to figures just what the heck is going on, and how to stop it.
I imagine that the show's creators were looking for exactly this kind of episode at this point in the season (otherwise, presumably they wouldn't have made it). Because at the heart of the TV franchise is exploration of wacky alien cultures, and sometimes the results are fairly typical.
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Memory Alpha summary.