"That said, ID does not qualify as science because it gives us nothing to test or measure. Science requires replicable tests involving measurable variables"

In this quote, Tony Snow is stating that while Intelligent Design (ID) may be a valid belief system, it does not fulfill the requirements to be considered a scientific theory. This is since ID does not supply any tangible proof or quantifiable variables that can be checked and reproduced. In order for something to be considered clinical, it needs to be able to go through replicable tests that involve measurable variables. This suggests that ID, while it may have its own benefits, can not be classified as a scientific theory due to the fact that it does not follow the essential principles of the scientific method.