Dear Colleagues, It is our pleasure to sponsor a new round table session, *Fostering Collaborations to Reach Hard-to-Reach Populations of Participants*, at the 2018 meeting of the Society for Personality and Social Psychology (SPSP) in Atlanta, Georgia, USA. The session will take place Friday, March 2, 2018, 5:15 PM - 6:15 PM (during the first Reception round). The goal of this special session is to bring together researchers who can benefit from sharing access to hard-to-reach populations, for example, people who study underrepresented racial minorities, LGBTQ participants, people with autism, or any others. We will host "round tables" of researchers with complementary interests, needs, and participant resources. This session will function as an organized meet-and-greet, with pre-planned groupings among researchers with similar interests. Anyone who is interested in exploring a new collaboration is welcome to attend and participate in discussions with members of these groups. We hope our session will serve a similar goal as other efforts such as StudySwap, but with a specific focus on underrepresented or hard-to-reach populations via face-to-face discussions with researchers who share your interests. StudySwap is a new platform for coordinating collective research resources. See SPSP Blog post here: <http://www.spsp.org/news-center/blog/studyswap> http://www.spsp.org/news-center/blog/studyswap. At this point, we have a group of approximately 50 researchers who have signed up to participate, which is terrific. We'll soon post a list of the populations / research topics that we've identified up to this point. Meanwhile, we welcome additional participants so please contact us if you're interested in joining in. We'll try to find a room that is large enough to accommodate as many round tables as possible. We intend for this session to lead to fruitful collaborations with tangible results. For example, one possible outcome of such a collaboration is the upcoming Collabra Nexus that will be guest edited by Christopher Chartier and Randy McCarthy, the developers of StudySwap. This Nexus (i.e., special issue with open-ended timeline) will focus specifically on multi-lab collaborations like the ones that we hope to facilitate at our session. The Nexus will offer a Registered Reports format, allowing for the possibility that collaborative projects will receive acceptance in principle prior to data collection. Chris and Randy will welcome submissions from collaborations resulting from this session. Although we cannot currently offer any funding for the collaborations that arise from this session, efforts are underway to secure money for such projects going forward. This round table session arose from discussions at this summer's meeting of the Society for the Improvement of Psychological Science. As we discussed at this meeting, cross-lab collaborations are a crucial component of improving our science. Our field increasingly recognizes that we learn more from larger samples, but this can be a daunting prospect for people who study hard-to-reach populations. Because a science of human behavior reflects the behavior of all people, not just those who can be accessed more easily, we aim to provide one avenue of support for such research. We hope that many of you are interested in attending this session. For planning purposes, we would appreciate it if you could let us know of your interest, ASAP. We may follow up with requests for more information in service of better formulating round table groups. In addition, please keep an eye on this space for more information about the session, including the populations / topics that will populate the round tables. Sincerely, John Paul Wilson wilsonjoh@mail.montclair.edu Yuichi Shoda yshoda@uw.edu Heather Urry heather.urry@tufts.edu On behalf of the "Increasing Diversity and Inclusion" group formed at the 2017 meeting of the Society for the Improvement of Psychological Science