Yoking participants in two conditions

Hi,

I am doing a study in which half the participants will be asked to send a message, and the other half will be receiving these messages. In order to do this, I would need to yoke the participants in the receive condition to participants in the send condition.

Is there any way to do this in Medialab? Based on what I have read in the forums, it looks like I might be able to do this in DirectRT. I would have to grab the messages written by the participants in the send condition, and then collate them into a .txt file that will then get used for the participants in the receive condition. Is this right? Is there a more efficient way to do this?

Any help/advice would be greatly appreciated!