Using punctuation correctly in academic writing

An introduction to the most common punctuation forms in English and how they are generally used in academic writing.

Note: If your course or publisher has specific writing or style guidelines, follow those instead of the general advice given here.

Comma (,)

  • Stakeholders in the project include residents, employees, nearby businesses and investors.

    Note for a simple list of single items, there is no comma needed before ‘and’ (after the second-last item).

  • This report encompasses professional development, qualifications and upskilling, teaching and learning, and retention.

    Note the use of the comma before the final ‘and’.

  • Compare the following: It was a dark, stormy night (dark and stormy)

    It was an Australian red wine. (You cannot say ‘an Australian and red wine’, therefore no comma is required)

  • In November 2005, the committee agreed to a review.

    Further, the study was limited in that it only looked at closed loops.

    However, it must be noted that redundant systems were not a factor in this study.

  • The researcher explained the procedures, however, an issue is that the participants do not always adhere to the guidelines.

    What makes this observation more important is that it is the first time it has been recorded, yet it also represents a clear departure from previous methods.

  • The first trial yielded three positive results, but the second, none.

    Note: the word ‘yielded’ is assumed but not needed in the second result.

  • The Treasurer stated, ‘Hospitals are the responsibility of the states.’

  • Various methods, such as interviews and observations, were used.
    The University of Melbourne, which is in Parkville, is Victoria’s oldest University.

Semi-colon (;)

  • Some of the studies seem to confirm the theory; others appear to refute the concept arguing that it is incomplete.

    Often, in these sentences, the semicolon could be replaced with a full stop, but the sentences would be abrupt and not clearly linked.

  • Where smaller parts of the sentence already contain commas, use a semi-colon to make the separation between them clearer.

    The contributors are Marie Noël, Professor of History; Stephen White, Research Fellow in Media Studies; and Wu Ming, lecturer at the IT Research Institute.

Colon (:)

  • The research investigated four key areas: the engineering ability of the applicants; the frequency of field opportunities; experience; and whether or not the engineers were learning as a result of these opportunities.

    Note: the role of the semi-colon (;) in separating items within a complex list

    Note: you do not need to use an introductory ‘be’ verb phrase together with a colon, e.g. The research investigated four key areas which were: the engineering …

  • There are several reasons for doing a PhD: career advancement, a personal sense of achievement, and development of research skills.

  • The report examines one area: students’ transition issues.

Dashes:  en dash ( – ) and em dash (—)

There is an emerging perception that dashes are a sign that text has been generated by AI. While some AI-written content does seem to overuse dashes, they are still a legitimate feature of human academic writing and are effective when used appropriately and sparingly.

  • Dashes can sometimes be used in the place of commas, semicolons, colons and brackets to set off information within the sentence.

    The following examples all use correct punctuation.

    Those with dashes interrupt the flow of reading more noticeably and draw more attention to the additional information. If you overuse dashes, they will no longer be effective.

    Most countries, including Australia, will not meet the WHO goal by 2030. [comma]
    Most countries—including Australia—will not meet the WHO goal by 2030. [em dash]
    Most countries – including Australia – will not meet the WHO goal by 2030. [en dash]

    Urban trees reduce the temperature in cities; they also improve mental health. [semicolon]
    Urban trees reduce the temperature in cities—they also improve mental health. [em dash]
    Urban trees reduce the temperature in cities – they also improve mental health. [en dash]

    Should I use em dash or en dash?

    Style guides will tell you whether to use em or en dash in your context. If you don’t have a style guide, choose one type of dash and use it consistently.

  • A dash can show connection between two nouns, when both have equal importance. This is called a coordinate noun.

    The student–teacher relationship [relationship between a student and their teacher. Both words are equally important.]
    The body–brain axis [refers to the connection between body and brain]
    The proposed Sydney–Newcastle rail line… [the two end points of the route]

Hyphen (-)

  • The three-hour exam is set for the following Monday.

    The program requires forty hours full-time study.

    A school-based project was undertaken.

Quotation marks “double” and ‘single’

  • Quotation marks are most commonly used to indicate direct quotes, i.e. language excerpts taken directly from original work and used in your writing.

    The use of double or single marks varies according to different referencing systems, such as APA and MLA: check a style manual for the referencing system you are using to see whether to use double or single quote marks.

    For all other situations, the rules below are generally applicable in Australia.

  • Use single quotation marks to note direct speech (i.e. what someone has said).

    She described the candidate as, ‘highly intelligent and articulate’.

    Note that the quotation marks start and end the quote only, the full stop is in the final position.

Apostrophe (')

  • The University of Melbourne’s grounds are extensive.

    A student’s fundamental role in academic writing is to answer the question. 

    (Singular, apostrophe position before s)

    Students’ timetables are available on the LMS.

    (Plural, apostrophe position after s)

    Note: Decades do not require apostrophes, e.g. 1990s, 2000s

  • In academic writing we generally avoid using contractions as they are considered informal (unless the contraction is part of a direct quote or if you have been told informal writing is OK, e.g. for a blog).

    Full forms are preferred in communications, for example, cannot instead of can't, will not instead of won't.

    Usage note: it’s = it is 100% of the time.

    Possessive form is its (e.g. The report is in its fifth iteration.)

Final tip

If you use software to review your writing, make sure you understand why punctuation has been flagged as incorrect. This will help you to decide if you should accept or reject any suggested corrections and ensure your writing remains your own work.

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