The development of meaningful indicators of the impact of innovations is an area of editorial emphasis.

That change in the students' rankings, value-added theory says, is a meaningful indicator of how much more effective Mrs. Brown is as a teacher than Mr. Smith.

In assessing specific measures of well-being, Daleiden disputes the usefulness of the common economic measure gross domestic product (GDP) as a meaningful indicator.

Movies that won't be made are often as meaningful social indicators as those that are.

They also argue that the rankings are not meaningful indicators of risk of victimization, as certain factors such as age, lifestyle, and neighborhood play a significant role in crime risk.

The message, unwittingly accepted by too many parents, is that a child's success or failure on the playing field is somehow a meaningful indicator of his or her potential in life.

Whilst all deaths are cause for concern, the really meaningful indicator is numbers of deaths per cycle-passenger-miles.

By itself, the dollar amount of national saving is not a particularly meaningful indicator of the portion of the nation's income that is not consumed.

By-elections are usually seen as the first meaningful indicator of a change in the political wind after a general election, particularly a change of Government, as in Oldham's case.

Seriously, though - a more meaningful indicator than MDF would be copper pipe.