Original sentence: An experiment performed in 1987 produced results that demonstrated that information could be obtained regarding which path a particle had taken without destroying the interference altogether.In other words, if one does not insist that the method used to determine which slit each photon passes through be completely reliable, one can still detect a (degraded) interference pattern
Edited sentence: An experiment performed in 1987 produced results that demonstrated that  partial information could be obtained regarding which path a particle had taken without destroying the interference altogether.In other words, there is a continuous tradeoff: if one does not insist that the method used to determine which slit each photon passes through be completely reliable, one can still detect a (degraded) interference pattern