This happens when trends change concurrent with a new effort and the effort is credited without statistical proof. (animals24-7.org)
Every politician wants to be able to point to statistical proof of how effective their policies have been — how many jobs were created, money saved, crimes reduced, etc.. (educationopportunitynetwork.org)
We must stop asking for statistical proofs that the Christian mission is succeeding and even be a little suspicious of such proofs. (religion-online.org)