Yet his insistence on postponing changes in education policy until studies by researchers approach "certainty" is itself a value judgment in favor of the status quo.

A precise site cannot be chosen until environmental, economic and engineering studies are made, Mr. Danielsen said.

It was not until vast studies like the Women's Health Initiative applied more rigorous methods that the picture began to change.

The structure of alacranite remained unsolved until further studies collected specimens containing crystals of alacranite.

The success of the park was unknown until recent studies.

In fact the term autotopagnosia does not appear until Pick's studies in 1908 and 1922.

Until studies like Dr. Borgia's, much that was known about bowerbirds was anecdotal, and a lot of those "facts" turned out to be wrong.

Both the local community board, Board 5, and the business organization that represents local merchants, the 34th Street Association, have reserved judgment until detailed studies can be prepared.

A link between the prone sleeping position and crib death was first suspected about the same time, but the link did not become firm until more recent studies.

Although social scientists have long known there was a strong association between loneliness and illness, it was unclear until recent studies which was the cause and which the effect.