Order Effects Theory
One-Sided versus Two-Sided Communications

Whose side are you on anyway?

 

  Persuasion                Primacy|Recency                 One-Sided|Two-Sided          Climax|Anti-Climax

                  Truth Effect                Propaganda|Marketing                    Conclusion                     References

 
 

Order effects in one-sided and two-sided communications can be largely attributed to communicative aspects; this differs from primacy and recency effects, which are attributed to cognitive processes.

Individuals are said to hold expectations about the order in which arguments are presented within the context of a message. This is based on conversational norms. “Depending on these expectations, arguments presented first or last will be highly influential,” and will be most influential when presented in the location that the individual expects the most important argument to be placed (Igou 91-99).

Individuals also hold different ideas about where arguments will be placed with in a message in reference to one-sided versus two-sided arguments. This placement expectation results in different order effects.  “In one-sided communications recipients are confronted with either pro or con arguments. In two-sided communications, arguments both for and against a position are presented” (Igou 91-99).

It is argued that when individuals are presented with two-sided communications, it is assumed that the communicator will favor the argument presented at the end. This is based on considerations of everyday conversations in which a conversation operates on a cooperative principle that favors contributions that are “relevant, informative, and avoid wordiness” (Igou 91-99).

It is also argued that when individuals are presented with one-sided communications, they expect that the important information should be presented at the beginning, again per cooperative conversational rules. “The strategy to present the most important information at the beginning would allow recipients to rapidly build a representation of the target, and therefore ensure not only an effective but also an efficient conversation” (Igou 91-99)

However, it is important to note that conversational order effects can be influenced by other variables, such as if the receiver is made aware that there is no particular order to a piece of communication. Also, potential moderator and mediator variables need to be taken into consideration (Igou 91-99). These variables necessitate further research on the design of one-sided and two-sided communication models.

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A Paper by Christine Kohler
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