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Replication, or repetition, typically refers to the ability of results and theoretical concepts to be recreated in subsequent investigations. This is an essential means of building the credibility or external validity of a theory or concept in the research world. Successful replication demonstrates that observed phenomena (often in regards to causal relationships) were not isolated instances, but fairly reliable patterns in a larger context. In an interdisciplinary field such as communication, this may be particularly important when using existing theories from other fields. Replication ensures robustness and generalizability of experimental observations. A communication scholar may find frequent need to reproduce the relationships demonstrated between common variables in other disciplines, but in a communication-specific context. Repetition of experiments is particularly important to confirming causal inferences. If ...

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