Until now, there has been no comprehensive effort to measure the number of commercial contracts with schools.

If you were loading a truck, I could measure the number of boxes.

It measures the number of data types a class knows about.

It measures the number of deaths in a population.

So for the next season, Nielsen will measure the number of people who actually have their set on during the commercials.

Incidence, in contrast, measures the number of new infections, usually over the previous year.

The study did not try to measure the number of people using the Internet.

Ratings measure the total number of households with television sets.

Another standard test is to measure the number of white cells in the blood.

The survey did not measure the total number of Alzheimer's and dementia patients.