There is little scientific basis for my opinion on this question.

He just wants to know the scientific basis for things.

Not until recent years, however, have attempts been made to place such studies on a sound scientific basis.

Why did you not give me the sound scientific basis for your surprising claim at once?

He does everything possible to strip away a scientific basis for park management.

Brown has made an interesting attempt to approach the situation from a more scientific basis.

"I have no idea what the scientific basis for that would be," he said.

Recently, the school has moved towards a much more scientific basis of training.

Let me ask the Commissioner: what is the scientific basis for these 7 years?

With all respect, I must say these reports have no scientific basis.