Term | Conceptual Definition |
| Parent Announcement
| NIH-wide funding opportunity announcement enabling applicants to submit an electronic investigator-initiated grant application for a single grant mechanism, e.g., Research Project Grant (Parent R01). Go to Parent Announcements for Unsolicited or Investigator-Initiated Applications.
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| Payline | A percentile-based funding cutoff point determined at the beginning of the fiscal year by balancing the projected number of applications coming to an NIH Institute with the amount of funds available.
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| Peer Review | A system for evaluating research applications using reviewers who are the professional equals of the applicant.
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| Percentile | Represents the relative position or rank of each priority score (along a 100.0 percentile band) among the scores assigned by a particular study section.
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| Phase III Clinical Trial
| As defined by NIH, a broadly based prospective Phase III clinical investigation (usually involving several hundred or more human subjects) to evaluate an experimental intervention in comparison with a standard or control intervention or to compare two or more existing treatments. The definition includes pharmacologic, non-pharmacologic, and behavioral interventions given for disease prevention, prophylaxis, diagnosis, or therapy. Community trials and other population-based intervention trials also are included. Go to Clinical Trial.
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| PI Degree - Primary
| A list of all of the highest level degrees held by the principal investigator. Academic and professional doctorates are presented first, if any. If there aren't any of these, then Masters are presented, and so on.
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| Primary (assignment)
| Routing of an NIH grant application by the Center for Scientific Review to an Institute or Center, which decides whether to fund it. An IC may request to change this assignment if the application is more suited to another IC. Also see Dual assignment.
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| Primary PCC
| The Program Classification Code assigned to an application/award by the primary IC (see Primary assignment).
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| Priority Score | A numerical rating of an application reflecting the scientific merit of the proposed research relative to stated evaluation criteria.
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| Program Announcement (PA) | An announcement by an NIH Institute or Center requesting applications in the stated scientific areas. Program Announcements (PA) are published in the NIH Guide for Grants and Contracts. Go to Program Announcements.
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| Program Announcement Rewarded in an Institute (PAR) | Program Announcement soliciting applications with special receipt, referral and /or review considerations.
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| Program Announcement with Set-Aside Funds (PAS) | Program announcement with set-aside funds.
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| Program Classification Code (PCC) | An internal code unique for each I/C indicating the I/C's scientific interest and used to identify internal programs, branch classifications, the science or disease area, and sometimes program officials.
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| Project Period | The total time for which support of a project has been programmatically approved. The total project period comprises the initial competitive segment, any subsequent competitive segment(s) resulting from a competing continuation award(s), and non-competing extensions.
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| Public Health Service (PHS) | Umbrella organization in the U.S. Federal Government consisting of eight HHS health Agencies, the Office of Public Health and Science, and the Commissioned Corps (a uniformed service of more than 6,000 health professionals). The NIH is the largest Agency within the PHS. Go to Office of Public Health and Science, HHS.
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