Frequently Asked Questions
Q. What is the Sigma Repository?
A. It is a profession-based online platform that freely disseminates nursing research, research-related materials, clinical materials related to evidence-based practice and quality improvements, and educational materials.
It is a self-archiving service, meaning that it works directly with authors/copyright holders of qualified materials to allow them to share their work on a global platform.
It is a free resource of Sigma Theta Tau International the Honor Society of Nursing (Sigma).
Q. Are materials posted in this repository considered published or disseminated?
A. It depends. If an item does not go through peer-review, it is considered as disseminated material. If an item goes through peer-review, it is considered to be published.
This repository offers a peer-review option for qualified materials!
Q. Who owns copyright to the materials posted in the repository?
A. Copyright is retained by the original copyright holder. Submitters must be the copyright holder, the copyright holder's proxy, or have obtained written permission from the copyright holder.
Q. Is this a pre-print repository?
A. No, the Sigma Repository assists nurses (working/retired) and nursing students with the dissemination of quality grey literature not otherwise easily located, but is not involved in posting pre-prints of published articles.
The repository also features a peer-review component that allows authors to publish manuscripts and educational materials.
Q. Who may submit to the repository?
A. Nurses (working and retired) and current students who hold (or are pursuing) degrees at the baccalaureate level and above received through appropriately accredited programs.
Sigma membership is not required.
Q. I am interested in submitting to the repository; where do I start?
A. Visit this page to get started:
Q. What may be submitted to the repository?
A. The repository accepts original, previously unpublished* items under the following categories:
- research (pilot, primary, secondary)
- clinical materials (EBP, translational research, QI, best practice guidelines)
- educational materials (CNE, faculty → student, peer → peer, expert → novice, nurse → patient/community)
- academic materials (faculty created learning materials created to assist students in the learning process)
- student-created materials (course projects, theses, dissertations, capstones)
- organization/business materials (reports, guidelines, event materials, resource papers)
*The repository accepts published materials that have been published under a Creative Commons License 4.0 International (BY CC). The repository also works directly with publishers to index previously published articles and abstracts.
Q. How do I register?
A. Visit this page for registration instructions:
Q. How do I submit an item to the repository?
A. Visit this page for submission instructions:
Q. May I submit an item that has been written by someone else?
A. You may submit an item that has been written by someone else if you are their legal proxy. See this page for additional information on proxies:
Q. Can non-Sigma organizations, hospitals, health-related businesses, etc. participate in the repository as a group?
A. Yes, visit this page to learn more about group policies:
Q. Can an item be removed once it has been posted in the repository?
A. No, once an item has been submitted, it is permanently housed in the repository. Exceptions to the rule: an item is removed if plagiarism or fraud is involved or when previously unrecognized fundamental errors are noticed.
Q. What are the benefits of posting materials in the repository?
A. Visit this page to learn about benefits:
Q. What is a Creative Commons license?
A. Creative Commons (CC) licensing is an optional step in the submission process. The CC license allows authors to choose how they are going to share their work with the public.
Please visit the Creative Commons website to learn more: