False negative readings can occur when testing is done too early.

This casts doubt on the usefulness of negative readings.

Proceeding without incident, the survey results in another negative reading.

(The negative reading reflected heavy exposure to the short side of the Nasdaq market.)

By tradition, it takes three straight negative readings to predict a recession, a situation that occurred briefly when the index for December was first released.

A November decline would represent the fifth straight monthly negative reading in the index.

"There hasn't been a single false negative reading."

Providing we get a negative reading, I'll walk out to meet you.

I have a negative reading on every damned instrument.