Replication in psychology refers to the process of repeating a study using the same methods to determine whether the original findings can be reproduced. It is a cornerstone of scientific integrity and reliability, ensuring that results are not due to chance, error, or bias. Successful replication strengthens confidence in a finding, while failed replication raises questions about its validity. The replication crisis in psychology, which emerged prominently in the 2010s, revealed that many landmark findings could not be reliably reproduced, prompting calls for greater methodological rigor and transparency. For example, attempting to reproduce the results of a classic social psychology experiment with a new sample to verify its findings is an act of replication.
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