A conference abstract is judged before anyone hears the talk: a committee reads a few hundred words and decides whether the work gets a session slot, a poster board or nothing. This guide, published by EdCitation, covers how to write a conference abstract; a journal article's abstract is in how to write a journal article.
Every rule here comes from six meetings' own pages, read on 26 September 2026: the American Society of Clinical Oncology (ASCO), the American Geophysical Union's AGU26, SPIE Photonics West in optics, the Association for Psychological Science (APS), the American Educational Research Association (AERA) and the American Historical Association (AHA). They disagree on nearly everything countable, so the call for abstracts in front of you is the rule that binds.
Start with it. EdCitation's free Check your paper reads a call into a checklist, each rule beside its sentence; Find sources shows what is already published; Cite a source builds the one or two references an abstract may carry. EdCitation never writes any part of an abstract.
What do reviewers look for in a conference abstract?
Complete work that fits the meeting, told plainly within the limit: a question, how it was answered, what was found, why it matters.
What the calls say they judge
- AERA reviews every paper on six elements: objectives, theoretical framework, methods, data sources or evidence, results or warranted conclusions, and significance (American Educational Research Association [AERA], 2026).
- ASCO reviews blind, judges abstracts "solely on the data submitted", and gives every phase III trial a statistical review; a line such as "further data will be presented" makes selection less likely (American Society of Clinical Oncology [ASCO], n.d.-c).
- AGU wants a concise, accurate account and its significance, and warns that reviewers may not share your specialty, so spell out acronyms (American Geophysical Union [AGU], n.d.-a, n.d.-c).
- SPIE chairs judge technical merit and fit, and refuse commercial papers (SPIE, n.d.-b).
- The AHA expects meeting papers to be at an early stage, held to less exacting standards than an article for the American Historical Review (American Historical Association [AHA], 2026).
Structured or one paragraph?
The meeting decides. ASCO asks for background, methods, results and conclusions, and its Trials in Progress abstracts for background and methods only (ASCO, n.d.-e). AGU names no headings; APS wants 50 words of plain text. For a randomised trial, CONSORT for Abstracts, written for conference abstracts as well as journals, recommends a structured abstract giving the design, participants, numbers randomised and analysed, primary outcome, harms, registration and funding (Hopewell et al., 2008).
How long can a conference abstract be, and what counts towards the limit?
As long as the call says, counted in its characters or words, and each call leaves different parts out.
| Meeting and field | What you send | Limit, and what counts | Unfinished work | Talk or poster |
|---|---|---|---|---|
| ASCO 2026, oncology | Abstract, one table (10 rows at most), no figures | 2,600 characters with title and table; spaces, authors and institutions not counted | Judged on the data given; Trials in Progress carry none | Committee decides; no preference |
| AGU26, Earth and space science | Abstract, optional image and plain-language summary | Title 300 characters; text 2,000, punctuation counted, spaces not | What has been done, not plans | You may ask for poster only |
| SPIE Photonics West 2027, optics | Review abstract, programme summary | 200 to 300 words; summary 50 to 150 | Proceedings may carry status reports | Chairs place each one |
| APS 2027, psychology | 50-word abstract, 500-word summary (2026 rules) | References optional, counted in the 500 | Complete data, except Pilot Project Posters | Rejected talks considered as posters |
| AERA 2027, education research | 120-word abstract, anonymised paper | Title 15 words; paper 2,000, references, tables and figures not counted | A complete paper, perhaps preliminary | You state a preference |
| AHA 2027, history | Whole sessions: 500-word abstract, 300 words per paper | Session title 20 words; poster abstract 500 | Roundtables and posters may show it | No single papers except posters |
Sources: ASCO (n.d.-d, n.d.-e), AGU (n.d.-b), SPIE (n.d.-b), APS (n.d.-a, n.d.-b), AERA (2026) and AHA (n.d., 2026).
Characters, words and spaces
A title is free at AGU and costs characters at ASCO. References are free at AERA and cost words at APS. AERA removes a paper over its limit, and ASCO accepts no updates to data after its deadline (ASCO, n.d.-d). Count as the call counts, and work from a saved draft: AGU advises writing offline, as errors are hard to fix once the fee is paid (AGU, n.d.-a).
Should a conference abstract's title state the result?
Only if the meeting wants it to, and two of these meetings say opposite things. ASCO wants the study described objectively, in sentence case, with no hint of the result, may edit a title that gives it away, and bars proprietary drug names (ASCO, n.d.-d). APS's 2026 poster rules want the main result rather than the question, in title case, because the title may be listed without the abstract; their example is "Meaning in Time: We Consider Our Lives Insignificant When Viewed from the Future" (Association for Psychological Science [APS], n.d.-b). AGU caps titles at 300 characters, AERA at 15 words.
Can I cite references in a conference abstract?
Sometimes, and sparingly: some calls expect a reference or two, some leave no room, and where allowed they usually count against the limit.
- AGU's standards ask for references to public sources (AGU, n.d.-c).
- ASCO lets Trials in Progress abstracts cite earlier published data (ASCO, n.d.-e); its requirements page is silent on references in results abstracts.
- APS allows them in the 500-word summary, counted.
- AERA puts them at the end, uncounted, in no required style, and your own work may be listed if nothing in the text reveals you.
- SPIE's review abstract is text only; references belong in the proceedings manuscript (SPIE, n.d.-a).
A worked example: one search, one reference
Suppose the background says how many conference abstracts reach full publication. EdCitation's Find sources, asked on 26 September 2026 for "full publication of results presented as conference abstracts", returned 639,320 works. First came the 2007 version of a Cochrane review by Roberta Scherer and colleagues, second its 2018 update, which pooled 425 reports covering 307,028 abstracts and found 37.3% published in full (Scherer et al., 2018). Cite the update, and always look for a newer version before citing.
From the update's DOI, Cite a source built this Vancouver entry, quoted as it came back, with a clear retraction screen:
Scherer RW, Meerpohl JJ, Pfeifer N, Schmucker C, Schwarzer G, von Elm E. Full publication of results initially presented in abstracts. Cochrane Database Syst Rev. 2018 Nov 20;2018(11):MR000005. doi: 10.1002/14651858.MR000005.pub4.
One detail is yours to settle. The volume, 2018, is the Crossref record's; PubMed's record gives volume 11, so a meeting following PubMed's form wants "2018 Nov 20;11(11):MR000005".
Can I submit a conference abstract before the results are in?
Usually not as a results abstract. Most of these calls want the work done, and those that take unfinished work give it a category of its own.
Where unfinished work is refused
APS's 2027 call wants data collection and analysis complete at submission (APS, n.d.-a), and its 2026 rules call "The results will be discussed" unacceptable. AERA removes submissions about work still being planned. ASCO considers an interim analysis of a randomised trial only if the protocol planned it.
Where it has a place
ASCO's Trials in Progress category takes trials open to enrolment with no data analysed by the deadline. Any result, even a toxicity figure, means rejection without review; how many planned patients have enrolled may be said, and the registry number is required (ASCO, n.d.-e). APS's Pilot Project Posters may report a plan or some data, SPIE's proceedings may carry status reports (SPIE, n.d.-a), and the AHA's roundtables and posters may present work in progress (AHA, 2026). Report what exists, labelled as what it is; promise nothing.
Poster or oral presentation: who decides?
Usually the committee or the session chairs; some calls take a preference, and at the AHA you choose by what you propose. ASCO allows no preference and places each abstract in a 12-minute oral, a 6-minute rapid oral, a three-hour poster session or online publication only (ASCO, n.d.-c). AERA takes a preference among paper, poster and roundtable, with about 10 minutes a paper. APS offers 15-minute talks, 5-minute flash talks and posters. An AHA poster proposal must say how the poster shows its material as well as what it argues (AHA, n.d.). Scherer and colleagues found orally presented abstracts more often published in full: an association, not proof of cause.
How do I write a conference abstract, step by step?
- Read the call into a checklist with EdCitation's Check your paper, and add by hand what it lists as not checked.
- Choose one session, track or unit.
- See what is already published with Find sources, by topic or by the claim a sentence makes.
- Write the question, method, result and meaning, with a sentence or two of background.
- Write the title last, to the meeting's convention.
- Build any reference with Cite a source in the style the call names.
- Count as the call counts, remove your name where review is anonymised, and have every co-author approve.
- Submit before the deadline, noting the dates for corrections and withdrawal.
What happens after a conference abstract is accepted?
You register, keep any embargo, present what was accepted, and often write the full paper.
- Register. AERA's presenting authors must register by 12 February 2027 to stay on the programme; ASCO's first author agrees at submission to present and register if selected.
- Keep the embargo. ASCO abstracts are confidential until ASCO publishes them online, and a journal article, full slides or poster may not appear until 7:00 a.m. Central time on the day of presentation (ASCO, n.d.-b).
- Expect a published record. ASCO's abstracts appear in a Journal of Clinical Oncology supplement, with copyright transferred to ASCO. SPIE publishes papers about six weeks after the meeting, only if presented, and records no-shows (SPIE, n.d.-a). AERA wants a revised full paper by 5 March 2027.
- Present what was accepted. APS may remove a presentation that differs from its submission.
For the full paper's list, EdCitation's Verify references looks up every entry.
Can I submit the same abstract twice, or publish it later?
Not twice within one meeting, often not to two meetings, and usually yes to a journal afterwards, disclosed.
Twice, to one meeting or to two
AERA removes every version sent to more than one unit, even with a changed title. SPIE allows several abstracts, each submitted once (SPIE, n.d.-b). ASCO wants related abstracts combined, may reject several from one study, and refuses work already presented or published, except at other ASCO meetings (ASCO, n.d.-a); an ASCO abstract may go elsewhere only after its ASCO presentation, with that meeting told ASCO holds the copyright (ASCO, n.d.-b). APS (before 15 October 2026) and AERA also refuse work already presented or published. AGU is the exception: published or presented work may go in if it adds new data and results (AGU, n.d.-c).
Publishing the full paper later
The International Committee of Medical Journal Editors (2026) does not treat a full report after a meeting abstract or poster as duplicate publication, though wider publicity may lower an editor's interest. SPIE lets a proceedings paper become an expanded SPIE journal article, the earlier paper disclosed and cited. Say so in your cover letter to the editor, treat reused text as self-plagiarism explains, and answer reviewers as in how to respond to peer reviewers.
Which EdCitation tools help with a conference abstract?
Check your paper is the best place to start, because these six calls set six different limits, and AERA removes a paper that breaks one. Free with no account, it reads a call into a checklist of word limits for each part, required headings, sources, style, font, spacing and margins, each rule beside the sentence it came from, so a misreading shows at once.
What it read from two real calls
| Call pasted | Read as rules | Listed as not checked |
|---|---|---|
| APS 2026 poster rules, eight lines | 50-word abstract; 500 words as the word count, which is the summary's | Five sentences, including complete data and counted references |
| AERA 2027 paper rules, about 570 words | Paper 2,000 words; title 15 words; abstract 120 words | Fourteen sentences, including the complete-paper and anonymity rules, and that no citation style is required |
Title case, the three keywords and the "results will be discussed" rule appeared in neither list, so read the call through once yourself. Check the not-checked list by hand. Theoretics QA, part of Max at $24 a month, judges a finished paper against the instructions read, with quotations from it, and never rewrites anything.
Find sources, free, looks across about 300 million published works, for a topic or for the claim one sentence makes, narrowed by years, open access and kind of source. Cite a source, free, turns a DOI, PubMed ID, ISBN, title or web address into an entry in six styles, Vancouver and APA 7 included, after a retraction check. For the full paper, the free Verify references returns every entry as verified, "check this" or not found, flags any retraction, and labels an entry it could not check as exactly that, never as not found; References from a file adds a match of every in-text citation against the list: three checks a month with a free account, no limit with Pro at $8 a month. No tool can promise a place on a programme.
Quick questions
How long is a conference abstract?
As long as the call allows: from 2,600 characters at ASCO to 50 words, plus a 500-word summary, at APS.
Do spaces count in a conference abstract's character limit?
Not at ASCO or AGU, the two character-limited calls read here; ASCO counts the title and table, and AGU counts punctuation.
Can I submit a conference abstract without results?
Only where the call has a category for it, such as ASCO's Trials in Progress or APS's Pilot Project Posters. Elsewhere, promising results later is refused or marked down.
Can I choose a poster or an oral presentation?
Rarely outright. AGU lets you ask for a poster only, AERA and APS take a preference, and ASCO's committee decides alone.
Can EdCitation write my conference abstract?
No. EdCitation never writes any part of an abstract; its free Check your paper reads the call into a checklist, and its other free tools find and cite the references.
References
- American Educational Research Association. (2026). 2027 AERA annual meeting call for submissions [PDF]. https://www.aera.net/Portals/38/2027%20AM%20Call%20for%20Submissions_updated_7_9.pdf
- American Geophysical Union. (n.d.-a). Abstract dos and don'ts: AGU26 edition. https://www.agu.org/meetings/first-timers-guide/abstract-knowledge-center/articles/abstract-dos-donts
- American Geophysical Union. (n.d.-b). AGU26 abstract requirements: Word counts, images and more. https://www.agu.org/meetings/first-timers-guide/abstract-knowledge-center/articles/abstract-requirements
- American Geophysical Union. (n.d.-c). Submission standards. https://www.agu.org/plan-for-a-meeting/agumeetings/meetings-resources/submission-standards
- American Historical Association. (n.d.). Call for proposals. https://www.historians.org/events/annual-meeting/call-for-proposals/
- American Historical Association. (2026, March 3). Annual meeting guidelines. https://www.historians.org/resource/annual-meeting-guidelines/
- American Society of Clinical Oncology. (n.d.-a). Abstract policies: Frequently asked questions. https://www.asco.org/annual-meeting/abstracts-presentations/abstract-policies-embargoes-exceptions/faqs
- American Society of Clinical Oncology. (n.d.-b). Prior presentation/publication & confidentiality. https://www.asco.org/meetings-education/meetings/abstract-submissions/prior-publication-confidentiality
- American Society of Clinical Oncology. (n.d.-c). Selection process & presentations. https://www.asco.org/annual-meeting/abstracts-presentations/submission-details/abstract-selection-process-presentations
- American Society of Clinical Oncology. (n.d.-d). Submission guidelines & requirements. https://www.asco.org/annual-meeting/abstracts-presentations/submission-details/requirements
- American Society of Clinical Oncology. (n.d.-e). Trials in progress submission guidelines. https://www.asco.org/annual-meeting/abstracts-presentations/submission-details/trials-progress-abstract-submission-guidelines
- Association for Psychological Science. (n.d.-a). Call for submissions: 2027 APS annual convention. https://www.psychologicalscience.org/conventions/2027-aps-annual-convention/call-for-submissions
- Association for Psychological Science. (n.d.-b). Poster rules and guidelines: 2026 APS annual convention. https://www.psychologicalscience.org/conventions/2026-aps-annual-convention/call-for-submissions/poster-rules-guidelines
- Hopewell, S., Clarke, M., Moher, D., Wager, E., Middleton, P., Altman, D. G., Schulz, K. F., & CONSORT Group. (2008). CONSORT for reporting randomized controlled trials in journal and conference abstracts: Explanation and elaboration. PLOS Medicine, 5(1), Article e20. https://doi.org/10.1371/journal.pmed.0050020
- International Committee of Medical Journal Editors. (2026). Recommendations for the conduct, reporting, editing, and publication of scholarly work in medical journals: Overlapping publications. https://www.icmje.org/recommendations/browse/publishing-and-editorial-issues/overlapping-publications.html
- Scherer, R. W., Meerpohl, J. J., Pfeifer, N., Schmucker, C., Schwarzer, G., & von Elm, E. (2018). Full publication of results initially presented in abstracts. Cochrane Database of Systematic Reviews, 2018(11), Article MR000005. https://doi.org/10.1002/14651858.MR000005.pub4
- SPIE. (n.d.-a). Manuscript guidelines and policies. https://spie.org/conferences-and-exhibitions/event-resources/manuscript-guidelines-and-policies
- SPIE. (n.d.-b). Photonics West abstract submission guidelines. https://spie.org/conferences-and-exhibitions/photonics-west/presenters/abstract-submission-guidelines