| 摘要 |
<p>Methods, apparatus, systems and articles of manufacture to monitor media devices are disclosed. An example method includes causing a removable storage device to store an identifier associated with a panelist, the removable storage device having a part to be removably coupled to a data port of a media device; providing the removable storage device to the panelist; and providing an application to be executed by the media device with a first instruction to, in response to the application detecting an event associated with the application, retrieve the identifier from the data port of the media device executing the application.</p> |
