1. A panelist identification device for determining an identity of a panelist based on an input interaction pattern of the panelist, said panelist identification device comprising a processor coupled to a panelist input device, said panelist identification device is communicatively coupled to a panelist reporting system, said processor is configured to: receive a first panelist identifier from a first panelist at a first time; authenticate the first panelist to the panelist reporting system based on the first panelist identifier; while the first panelist is authenticated to the panelist reporting system, receive at least a first input from the first panelist through the panelist input device; identify a first input interaction pattern of the first panelist based at least in part on the first input; receive a candidate input at a second time through the panelist input device, wherein the second time is subsequent to the first time; identify a candidate input interaction pattern based on the candidate input; determine that the candidate input interaction pattern satisfies a threshold level of similarity to the first input interaction pattern; and authenticate the first panelist to the panelist reporting system in response to determining that the candidate input interaction pattern satisfies the threshold level of similarity to the first input interaction pattern.