11.   But technology companies are not reliable economic indicators, coming from an industry that, for the last couple of years, has been exceedingly strong.

12.   But those grades are not reliable indicators of quality.

13.   Economists called the orders pickup a more reliable indicator than a report yesterday that production fell in October, a month of sporadic strikes in the metal industry.

14.   High style is not a reliable indicator of a negative attitude toward children.

15.   If the Time poll is a reliable indicator, one in three Americans believes something weird.

16.   In this case, no age-related phenomenon has proved to be a reliable indicator of the rate of aging in humans.

17.   Karen LeBleu, a fifth-grade teacher, says being chosen by a parent is an ego boost, but not a reliable indicator of teacher quality.

18.   Lie detector tests, which have never gained broad acceptance among scientists as a reliable indicator of whether someone is telling the truth, are staging a comeback.

19.   Nevertheless, approval ratings at this stage of a campaign are rarely a reliable indicator of how a candidate will fare on Election Day.

20.   Pilot-deviation reports are a more reliable indicator of trouble.