**Original citation.** Sahakyan, L., Delaney, P. F., & Waldum, E. R. (2008). Intentional forgetting is easier after two" shots" than one. *Journal of Experimental Psychology: Learning, Memory, and Cognition, 34*(2), 408.
**Target of replication.** The target effect for the replication is the interaction effect between context strength and condition (directed forgetting vs. control). If spaced presentation will lead to significant stronger forgetting effects than massed presentation, this would be empirical support for one prominent hypothesis, "(...) that directed forgetting is a context effect." (p. 408).
**A priori replication criteria.** The replication study should be considered successful if we find the interaction effect between context strength and condition (directed forgetting vs. control).
**Materials, Data, and Report. ** [Study materials][1] can be found in the materials component of this project. [Raw data and the analysis script][2] can be found in the dataset node. [The full report][3] and other materials appear in the files section of this node.
**Conclusions. ** In the replication at hand we evaluated the magnitude of the direct forgetting effect of weak (massed) and strong (spaced) items. We failed to replicate the previous finding by Sahakyan et al. (2008), but the descriptive effect goes into the same direction (see figure 1). A possible explanation for this result could be the non-significant main effect of the forgetting manipulation (partial η2 Sahakyan et al. (2008) = .09; partial η2 replication = .024), which is a necessary pre-condition for investigating the interaction effect.
[1]: https://openscienceframework.org/project/bZdR2/node/4nzfq/files/
[2]: https://openscienceframework.org/project/bZdR2/node/6tnyx/files/
[3]: https://openscienceframework.org/project/bZdR2/files/Report_Sahakyan_et_al2009.pdf/
