the reasoning involved when you assume the conclusion is true and reason backward to the evidence

[ Syn: reasoning backward ]

returning to a former state

[ Syn: regression , reversion , retrogression , retroversion ]

go back to a statistical means

go back to a previous state; We reverted to the old rules

[ Syn: revert , return , retrovert , turn back ]

get worse or fall back to a previous condition

[ Syn: retrograde , retrogress ]

go back to bad behavior; Those who recidivate are often minor criminals

[ Syn: relapse , lapse , recidivate , retrogress , fall back ]