Thus, researchers have found it difficult to separate and measure the effects of each change.

Since 1997, the agency has been measuring the effects of a vehicle's being hit from the side.

This is one of the first to try to measure the effects directly.

They said that measuring the environmental effects of the noise is difficult.

The reports provide the Congress with a baseline against which to measure the effects of proposed changes in spending and tax laws.

How, then could we measure the effects on the plastic?

How do you measure the effects of the internet on the economy?

"It's to demonstrate the capability and then to measure the effects."

It is very difficult to measure the actual effects of the proposal.

Without such statistics, there is no way of measuring the effects on men and women respectively.