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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III- LINE 1: DESCRIPTION OF ORGANIZATION'S MISSION STATEMENT</FormAndLineReferenceDesc>
        <ExplanationTxt>COS IS A NON-PROFIT TECHNOLOGY COMPANY AIMING TO PROMOTE OPENNESS, INTEGRITY, AND REPRODUCIBILITY OF SCIENTIFIC RESEARCH. COS ACCOMPLISHES THIS BY EMPLOYING FIVE INTERDEPENDENT ACTIVITIES: (1) METASCIENCE - ACQUIRING EVIDENCE TO ENCOURAGE CHANGE - COS PROVIDES EVIDENCE ON THE STATE OF SCIENCE, EVALUATES COS SERVICES TO MAXIMIZE EFFECTIVENESS, AND TRACKS CULTURE CHANGE IN OPENNESS; (2) INFRASTRUCTURE - BUILDING TECHNOLOGY TO ENABLE CHANGE - COS ESTABLISHES VIABILITY OF OPEN SCHOLARSHIP ACROSS THE ENTIRE RESEARCH LIFECYCLE, AND SUPPORTS HUNDREDS OF COMMUNITY INTERFACES FOR CONDUCTING AND SHARING SCHOLARLY ACTIVITY; (3) TRAINING - DISSEMINATING KNOWLEDGE TO ENACT CHANGE - COS OPTIMIZES TRAINING DELIVERY TO MAXIMIZE ITS REACH AND IMPACT PARTICULARLY FOR SUPPORTING UNDERSERVED COMMUNITIES, AND FOSTERS SUSTAINABILITY WITH INTEGRATION INTO COURSE CURRICULA; (4) INCENTIVES - PROVIDING REASONS TO EMBRACE CHANGE - COS BRINGS ADOPTION OF ITS INCENTIVE SERVICES TO SCALE, MONITORS AND INCENTIVIZES ADOPTION BY STAKEHOLDERS, AND INCORPORATES CONTINUOUS EVALUATION OF INTERVENTION EFFECTIVENESS; (5) COMMUNITY - FOSTERING CONNECTION AND INCLUSION TO PROPAGATE CHANGE - COS GROWS AND EMPOWERS COMMUNITY PARTNERSHIPS WITH INTEGRATED SERVICES AND COLLABORATION ACROSS STAKEHOLDER COMMUNITIES.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 4A, PROGRAM SERVICE ACCOMPLISHMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>INFRASTRUCTURE: COS SUPPORTS AND MAINTAINS THE OSF (WWW.OSF.IO) TO HELP RESEARCHERS MANAGE, ARCHIVE, AND SHARE THEIR RESEARCH, PRIVATELY OR PUBLICLY. IN 2016, COS CONTINUED TO MAKE SIGNIFICANT PROGRESS IN ESTABLISHING THE OSF AS A FULL-FEATURED APPLICATION FRAMEWORK. THIS INCLUDED IMPROVEMENTS TO A NUMBER OF CORE FEATURES INCLUDING AUTHENTICATION, METADATA, MESSAGING, VERSION CONTROL, ACCESS CONTROL, DATABASING, STORAGE SERVICES, AND A PUBLIC API. THE OSF IS NOW POSITIONED PERFECTLY AS A FREE, PUBLIC INFRASTRUCTURE FOR CREATING, CONNECTING, AND INTEGRATING COUNTLESS SERVICES ACROSS THE RESEARCH LIFECYCLE. INTERNALLY, THIS IS EVIDENT THROUGH NEW INITIATIVES LIKE OUR BEHAVIORAL RESEARCH DATA COLLECTION TOOLS. BUILDING ON THE OSF, WE ARE CREATING A FREE, OPEN SERVICE THAT WILL INHABIT THE MARKETPLACE CURRENTLY DOMINATED BY TOOLS LIKE QUALTRICS, SURVEYMONKEY AND SOME SMALLER, MORE ELABORATE EXPERIMENT PLATFORMS. BECAUSE OF THE OSF'S OPEN, MODULAR DESIGN, WE AND OTHERS WILL BE ABLE TO INCORPORATE THE BACK-END SERVICES TO SUPPORT ANY KIND OF FRONT-END USER INTERFACES FOR COLLECTION OF SOCIAL SCIENCE RESEARCH PARTICIPANT DATA, WITH THE ABILITY TO EXTEND VERY EASILY TO COLLECTION OF META-DATA FOR ANY RESEARCH APPLICATION (NOT LIMITED TO SOCIAL SCIENCE). OUR MODULAR, OPEN APPROACH WILL SAVE A TREMENDOUS AMOUNT OF STARTUP AND MAINTENANCE TIME FOR THOSE LOOKING TO BUILD SPECIALIZED SERVICES BY PROVIDING THEM WITH KEY, COMMON INFRASTRUCTURE ELEMENTS THAT EVERYONE ELSE ALSO NEEDS. THIS WAY, NEW TOOLS AND SERVICES CAN FOCUS ON THEIR SPECIFIC INTEREST AND CORE EXPERTISE RATHER THAN REDUNDANT (AND LESS EFFECTIVE) IMPLEMENTATION OF BACK-END TOOLS THAT SUPPORT THEIR NEW SERVICE. FURTHER, FUNDERS WHO SPONSOR PROJECTS ALSO WIN BY AVOIDING REDUNDANCY IN FOUNDATIONAL INFRASTRUCTURE DEVELOPMENT. FUNDERS CAN GET THE SAME OUTPUT WITH MUCH SMALLER GRANTS TO TEAMS THAT BUILD THEIR SERVICE ON TOP OF THE OSF APPLICATION FRAMEWORK. LINKING SERVICES UNDER DEVELOPMENT IN 2016: - DISCOVERY TOOLS: VIVO - DATA MANAGEMENT PLANNING: DMPTOOL - RESEARCH PLANNING: EVERNOTE - RESEARCH WORKFLOWS: GALAXY - DATA ANALYSIS: JASP STATS - COMPUTATION IN THE CLOUD: UNIVERSITY OF NOTRE DAME'S CENTER FOR RESEARCH COMPUTING - CODE REPOSITORY: BITBUCKET - DATA STORAGE: ONEDRIVE - DATA REPOSITORIES: DRYAD, NEUROVAULT, ZENODO - AUTHORING: SHARELATEX - PUBLISHING: UBIQUITY PRESS, OPEN JOURNAL SYSTEMS</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 4B, PROGRAM SERVICE ACCOMPLISHMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>METASCIENCE: COS SUPPORTS RESEARCH ON SCIENTIFIC PRACTICES. THESE EFFORTS CAN INFORM BEST PRACTICES AND SERVE AS PLATFORMS TO DEMONSTRATE REPRODUCIBLE RESEARCH METHODS. SOME ACHIEVEMENTS FROM 2016 INCLUDE: - CONTINUED PUBLIC DISCOURSE AROUND RESULTS OF THE REPRODUCIBILITY PROJECT: PSYCHOLOGY (RESULTS PUBLISHED IN THE JOURNAL SCIENCE IN JUNE, 2015). - INITIAL RESULTS PUBLISHED BY THE REPRODUCIBILITY PROJECT: CANCER BIOLOGY. THE PROJECT WILL PUBLISH THE INDIVIDUAL REPLICATIONS IN SMALL BATCHES AND THEN A SUMMARY REPORT AT THE VERY END OF THE PROJECT. - THROUGH EXTERNAL GRANT AWARDS, COS SUPPORTED THE REPRODUCIBILITY PROJECT: TRANSCRANIAL DIRECT CURRENT STIMULATION (TDCS) AT THE UNIVERSITY OF CALIFORNIA - DAVIS. - CONTINUED COMMUNITY DISCUSSION OF THE IMPACT OF THE COS STUDY ON THE IMPACT OF BADGES UPON DATA SHARING. THIS STUDY FOUND THAT THE JOURNAL PSYCHOLOGICAL SCIENCE EXPERIENCED AN INCREASE IN DATA SHARING FROM AROUND 3 PERCENT OF PUBLISHED ARTICLES TO NEARLY 40 PERCENT IN ONLY 1.5 YEARS FOLLOWING ADOPTION OF BADGES. COMPARISON JOURNALS WITHOUT BADGES SHOWED NO CHANGE IN DATA SHARING OVER THE SAME PERIOD. IN 2016, WE USED THESE FINDINGS TO PROMOTE ADOPTION OF BADGES AS SIMPLE INCENTIVES TOWARDS MORE OPEN EDITORIAL POLICIES.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 4C, PROGRAM SERVICE ACCOMPLISHMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>COMMUNITY; COS FOSTERS OPEN SCIENCE COMMUNITIES OF RESEARCHERS, DEVELOPERS, AND LEADERS. MANY INFRASTRUCTURE PROJECTS IN DEVELOPMENT OUTSIDE COS WILL INCREASE OPENNESS IN SCIENCE. COS IS WORKING TO ESTABLISH AN OPEN DEVELOPER COMMUNITY WHICH WILL ENHANCE COLLABORATION AND INTERACTIVITY AMONGST SILOED EFFORTS. FURTHER, AN ACTIVE OPEN SCIENCE COMMUNITY IS ESSENTIAL FOR TESTING AND IMPROVING INFRASTRUCTURE AND PRACTICES. OPEN SCIENCE PRACTICES WILL ACCELERATE DRAMATICALLY IF STAKEHOLDERS WITH LEVERS FOR CHANGE CREATE INCENTIVES OR REQUIREMENTS FOR RESEARCHERS. COS PROMOTES OPEN SCIENCE PRACTICES WITH JOURNALS, FUNDERS, RESEARCHERS, AND SOCIETIES. PREREGISTRATION CHALLENGE: THE PREREGISTRATION CHALLENGE KICKED OFF IN 2015. PREREGISTRATION INCREASES THE CREDIBILITY OF HYPOTHESIS TESTING BY CONFIRMING IN ADVANCE WHAT WILL BE ANALYZED AND REPORTED. FOR THE PREREGISTRATION CHALLENGE, ONE THOUSAND RESEARCHERS WILL RECEIVE $1,000 EACH FOR PUBLISHING RESULTS OF PREREGISTERED RESEARCH. PRESENTATIONS: IN 2016, COS PRESENTED AT MAJOR CONFERENCES INCLUDING THE ASSA, SLAS, ACS, STM ASSOCIATION, RMPA, ARL, AND RDA. ACROSS CONFERENCES, MEETINGS, AND WORKSHOPS IN 2016, COS STAFF PRESENTED TO OVER 4,000 INDIVIDUALS AROUND THE WORLD. FUNDERS AND JOURNALS: IN 2016, MULTIPLE NEW JOURNALS AND FUNDERS BEGAN ENCOURAGING USE OF THE OSF TO SUPPORT THEIR OPEN DATA SHARING POLICIES. INCENTIVES FOR OPEN PRACTICES: IN 2015, WE LAUNCHED THE TRANSPARENCY AND OPENNESS PROMOTION (TOP) GUIDELINES INITIATIVE. THE TOP GUIDELINES ARE A CULMINATION OF WORKSHOPS AND CONTRIBUTIONS FROM MANY JOURNAL AND FUNDER REPRESENTATIVES ACROSS MANY DIFFERENT RESEARCH COMMUNITIES. THE TOP GUIDELINES INTEGRATE COS TRANSPARENCY PRODUCTS (E.G. BADGES, REGISTERED REPORTS, PREREGISTRATION) INTO MAINSTREAM EDITORIAL POLICIES AND RESEARCHER PRACTICES. IN 2016, WE REACHED 740 SIGNATORIES. EACH HAVE COMMITTED TO CONDUCT A REVIEW OF THE STANDARDS AND INCREMENTAL LEVELS FOR POTENTIAL ADOPTION. IN 2017, WE WILL CONTINUE TO WORK WITH SIGNATORIES ON ADOPTION AND INCREMENTAL IMPLEMENTATION, AND WE WILL WORK TO RECRUIT MORE SIGNATORIES. EDUCATION AND TRAINING: COS OPERATES A FREE EDUCATION AND TRAINING PROGRAM IN REPRODUCIBLE AND OPEN PRACTICES. THIS SERVICE SUPPORTS OUR OTHER INITIATIVES SUCH AS THE PREREGISTRATION CHALLENGE, REPRODUCIBILITY PROJECTS, AND A RCT TO EVALUATE THE IMPACT OF THE OSF IN COLLABORATION WITH UC RIVERSIDE.</ExplanationTxt>
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        <ExplanationTxt>PURSUANT TO THE ORGANIZATION'S ARTICLES OF ORGANIZATION AND BYLAWS, THE FOUNDING MEMBERS HAVE THE RIGHT TO APPOINT BOARD MEMBERS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>COPIES OF THE CENTER'S FORM 990 ARE PROVIDED TO ALL MEMBERS OF THE BOARD FOR THEIR REVIEW PRIOR TO FILING OF THE RETURN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 18</FormAndLineReferenceDesc>
        <ExplanationTxt>COPIES OF THE CENTER'S FORM 1023 AND FORM 990 ARE AVAILABLE FOR PUBLIC INSPECTION AT THE CENTER'S OFFICE. THE CENTER WILL PROVIDE COPIES OF THE FORMS 1023 AND 990 UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CENTER MAKES COPIES OF ITS GOVERNING DOCUMENTS AND FINANCIAL STATEMENT AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, QUESTION 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>NO CHANGES IN THE OVERSIGHT OR SELECTION PROCESSES FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>