Power management for audience measurement meters

A tangible computer readable medium comprising computer readable instructions which, when executed, cause a processor to at least:

• obtain presentation device state data representing an activation state of a media presentation device that is to present received media and is monitored by an audience measurement meter, the presentation device state data including time information;
• and
• determine whether to fault audience measurement data reported by the audience measurement meter based on the presentation device state data and outage information determined from the audience measurement data.

An apparatus comprising:

• a data receiver to obtain presentation device state data representing an activation state of a media presentation device that is to present received media and is monitored by an audience measurement meter, the presentation device state data including time information;
• and
• a processor to determine whether to fault audience measurement data reported by the audience measurement meter based on the presentation device state data and outage information determined from the audience measurement data.