Tatiana Sokolova

Data from a pre-publication independent replication initiative examining ten moral judgement effects

We present the data from a crowdsourced project seeking to replicate findings in independent laboratories before (rather than after) they are published. In this Pre-Publication Independent Replication (PPIR) initiative, 25 research groups attempted to replicate 10 moral judgment effects from a single laboratory’s research pipeline of unpublished findings. The 10 effects were investigated using online/lab surveys containing psychological manipulations (vignettes) followed by questionnaires. Results revealed a mix of reliable, unreliable, and culturally moderated findings. Unlike any previous replication project, this dataset includes the data from not only the replications but also from the original studies, creating a unique corpus that researchers can use to better understand reproducibility and irreproducibility in science.

Paying More to Save Less: The Effect of Self-Selected Price Bundling on Willingness to Pay (An Abstract)

Price bundling, a practice of offering a price promotion to consumers buying two or more separate products together, is a prevalent sales promotion tactic. The current study focuses on a “self-selected price bundling,” where consumers can decide which products to include in the bundle, and investigates how consumers make spending decisions under this promotion. We compare two frames of price bundling—“buy two items, get a discount on both items” and “buy two items, get a discount on the cheaper item.” Six studies (Study 1A through Study 4) demonstrate that, holding the spending on the first item fixed, the objectively superior “buy two items, get a discount on both” promotion induces lower consumer spending. We formulate and test empirically a “gain-loss ratio” account of the observed effect (Study 3 and Study 4), which shows that in the context of self-selected price bundling, consumers evaluate their spending on the second item relative to the savings on the whole bundle and try to keep high exchange efficiency, i.e., savings per dollar spent. Further, we show that the spending outcome is reversed when the two formats are considered in a joint evaluation (Study 5). Theoretical and practical implications are discussed.