We are students in PSY202H1-S "Statistics II" at University of Toronto completing the Griskevicius replication project. This page contains all the collected study materials and instructions from authors that we have compiled. We also include any comments from other contributors or follow up instructions that we have learned since the beginning of the project. Click "read more" below or choose the "Wiki" option above for further information. Contact Johanna Cohoon for help with technical problems. Contact either either Hans IJzerman (h.ijzerman@gmail.com) or Mark Brandt (m.j.brandt@tilburguniversity.edu) so that the materials can be made available on this website. **Course Specific Information** This replication is being conducted by 20 student groups of 4-5 students each in a large statistics course at University of Toronto. Each student group will be responsible for their own sampling and analysis, and the details for each group will be provided on branched pages. Our sampling goal is approximately 100 participants per student group (20 people per student), and participants will be recruited via email and social media. This is a Direct Plus replication; in addition to the original measures, we have also updated the gender demographic item to better reflect our current understanding of gender and to be more inclusive, and added an item assessing ethnicity so that students may test this as a moderator of predicted effects. Analyses including demographics are purely exploratory. **Abstract** Why do people purchase proenvironmental “green” products? We argue that buying such products can be construed as altruistic, since green products often cost more and are of lower quality than their conventional counterparts, but green goods benefit the environment for everyone. Because biologists have observed that altruism might function as a “costly signal” associated with status, we examined in 3 experiments how status motives influenced desire for green products. Activating status motives led people to choose green products over more luxurious nongreen products. Supporting the notion that altruism signals one’s willingness and ability to incur costs for others’ benefit, status motives increased desire for green products when shopping in public (but not private) and when green products cost more (but not less) than nongreen products. Findings suggest that status competition can be used to promote proenvironmental behavior. **Study 1 Materials** - [Status Competition Materials][3] - [Control Materials][4] - All other items are reported in [the paper][5] **Notes from Original Author (Griskevicius)** > If someone seeks to replicate the study, I would point them to think > about 2 things: > >(1) First, keep in mind that this study is capturing > a fad -- "green" consumption behavior as a substitute for prosocial > behavior in the United States. To the extent that green consumption is > no longer seen as a substitute for prosocial behavior, the effect will > cease to be. > >(2) Second, the effect is my studies was driven by > liberal individuals ("Democrats" in US political lingo). It is > specifically for these types of individuals that going green is > fashionable. Thus, I would advise researchers to measure individual > differences in political leanings as a potential moderator. [1]: mailto:h.Ijzerman@tilburguniversity.edu [2]: mailto:m.j.brandt@tilburguniversity.edu [3]: http://openscienceframework.org/project/vDo0i/files/Griskevicius_et_al_Status_Competition_FINAL_20130710123739.doc [4]: http://openscienceframework.org/project/vDo0i/files/Griskevicius_et_al_Control_Tickets_20130710123739.doc [5]: http://openscienceframework.org/project/vDo0i/files/Griskevicius_Tybur_van_den_Bergh_2010_20130710123334.pdf **Notes from CREP Team** To obtain a CREP replication reward the minimum N for this project is 82.