The One-Way/Two-Way Communication Exercise: Some Ghosts Laid to Rest

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Abstract
The well-known one-way/two-way communication exercise was examined in terms of (1) criticisms frequently made by participants and (2) the original study from which it was derived. Each of 24 groups of 7-10 college students did both a one-way and a two-way communication, with the order of diagrams and the communication mode systematically varied. As predicted, there was no difference in difficulty between the two diagrams. Further, two-way communication was, as predicted, more accurate, more satisfying, and more time consuming than was one-way communication. Finally, there was no practice effect in moving from a oneto a two-way communication, but significant transfer occurred in the reversed condition. The results are discussed in terms of the quantity and quality of communication permitted by two-way as opposed to one-way communication.

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