<p>Prior research has examined the accuracy of the causal attribution process, which has been linked to the onset and maintenance of depressed mood. The current study attempted to replicate findings from these two studies, but also presented an important extension of the work with an addition of a mood priming paradigm. Participants were 498 undergraduate participants from the U.S. Results from the current study partially replicated previous findings. Participants reporting a depressogenic attributional style demonstrated pessimistically biased attributions (more stable and global attributions for negative events than objective coders), while those reporting a nondepressogenic attributional style did not demonstrate significant bias. With regard to dysphoria, both dysphoric and non-dysphoric participants were found to be pessimistically biased in their attributions, however dysphoric participants were more pessimistically biased than their non-dysphoric counterparts. In an important extension of these findings, increases in dysphoria and depressogenic attributions in response to the mood prime were both significantly predictive of decreases in attributional accuracy (i.e., increases in pessimistic bias).</p>