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[I][edited from support email][/I]
Sometimes I get Rt's of 101 ms which I guess indicate a false response, but in other cases, where I know they didn't finish reading the first slide and it's a false response, the RT's recorded can go up to 300ms, and in any case they are very varied, which makes it impossible for me to decide if it's a false response or a true one.
101 almost invariably indicates that the subject was speaking or some other noise was occurring at the [I]start[/I] of the voice RT. DirectRT will not accept any voice RT under 100ms. Consequently, if there is sufficient sound at the start of an RT, DirectRT will accept it as a response at 101ms from stimulus onset.
Any response time [I]greater[/I] than 101 indicates that there was not sufficient sound at the [I]start[/I] of the trial to trigger an RT, indicating that the response was probably [I]not[/I] a carry over from the previous trial. To obtain an RT of 300ms by way of a carry over response, the subject would have to be silent on the current trial until 300ms into it, and then resume their response to the previous trial. I suppose this could also happen if their speaking volume on the previous response dropped below the RT criterion until 300ms into the next trial. The only way I can imagine teasing that apart from a valid response to the current trial would be to manually check the sound recordings.