There was a world of difference between coincidental intervention in another's tragedy and having someone sentence you to death.

Moreover the boundary line between intervention in this way, and a more direct substitution of opinion by the judiciary may well become blurred.

Confounding factors are therefore alternate explanations for an observed (possibly spurious) relationship between intervention and outcome.

"The trial is aimed at showing the relationship between early intervention and rapidity of recovery," Mr. Alfaro said.

"The thinking was that there had to be some option between direct military intervention and doing nothing at all."

Dr. Feuerstein's theory is based on the proper balance between adult intervention and a child's independence.

People on talk shows and in other forums are trying to find the line between family privacy and public intervention.

President Clinton, shifting course with shifting circumstances on the ground, has tried to take a middle position between all-out intervention and a refusal to play any role.

Mind, there is a pretty clear distinction between intervention and merely attempting to influence events in another nation.

Treatment varies between therapy and surgical intervention by the use of shunts.