Does Developing a Belief in One Conspiracy Theory Lead a Person to be More Likely to Believe in Others?

Longitudinal research on participants in Australia, New Zealand and the UK found evidence with small but significant effects that increased belief in one conspiracy theory could lead to increased beliefs in other conspiracies at a later time. This research contributes to ongoing efforts to demonstrate the validity of the “rabbit hole” theory, which is the idea that belief in conspiracy theories can grow when one conspiracy theory is believed.