A good article is—
Well-written:
- (a) the prose is clear, concise, and understandable to an appropriately broad audience; spelling and grammar are correct; and
- (b) it complies with the Manual of Style guidelines for lead sections, layout, words to watch, fiction, and list incorporation. [1]
Point A means:
Point B lists exactly five pages of the WP:Manual of Style (out of about 50) that good articles must comply with. For the purpose of a GA review, all other parts of the MoS are optional. (The "Fiction" and "List incorporation" guidelines do not apply to many articles.)
Verifiable with no original research:
- (a) it contains a list of all references (sources of information), presented in accordance with the layout style guideline;
- (b) reliable sources are cited inline. All content that could reasonably be challenged, except for plot summaries and that which summarizes cited content elsewhere in the article, must be cited no later than the end of the paragraph (or line if the content is not in prose); [2] and
- (c) it contains no original research.
Point A means that there must be at least one section with a ==Level 2== header, containing a list of sources used in the article with section titles explaining the contents.
Point B names five types of statements for which the good article criteria require some form of inline citation:
This standard is higher than the absolute minimum standard set by policy, but noticeably lower than many editors' personal preferences. If an article contains none of these five types of statements, then Wikipedia:Citing sources#General references may be used. If the article contains any of these five types of statements, then some sort of inline citation system must be used for those specific statements. (All other article text may still be supported by general references.) Any system that allows the reader to connect a specific sentence with a specific citation is an acceptable inline citation method: editors may choose between <ref> tags or author-date parenthetical citations or any other system that is clear to the reader. However, one system should be used consistently for inline citations.
Page numbers (or similar details) are only needed when the inline citation concerns one of the above five types of statement and it would be difficult for the reader to find the location in the source without a page number (or similar detail).
Point C means that all facts, opinions and synthesis in a good article should be based on reliable sources with no original research. Statements made in the article should either be common knowledge or reflect the material in the sources.
Broad in its coverage:
- (a) it addresses the main aspects of the topic; [3] and
- (b) it stays focused on the topic without going into unnecessary detail (see summary style).
Point A means that the "main aspects" of the topic, according to reliable sources, should each be "addressed" in the article; it does not require comprehensive coverage of these major aspects, nor any coverage of minor aspects. For particular types of article, WikiProjects often provide helpful advice on what the main aspects are likely to be. (Do not, however, require compliance with any advice pages written by WikiProjects; only compliance with the policies and guidelines specifically named in the six Good article criteria themselves are required.) For an article on a work of fiction, a summary of the plot and a discussion of the reception are usually required. For an article on a disease, the causes, symptoms and treatments are usually significant.
Point B raises two issues. First, the article should avoid undue emphasis on tangents, such as
coatracks, and trivia. The inclusion of details and minor aspects can contribute to good writing, but such details should not overwhelm the article. Second, the level of detail of each aspect of the topic should be appropriate to the article and kept in balance: where an aspect of the topic involves information which is or could be covered in more detail by another article, the article itself should
summarize this information with suitable links, such as {{
Main|(the background article)}}
, where appropriate.
Taken together, these criteria mean that no obviously important information should be entirely absent from the article, and the level of detail should be appropriate to the significance of the information. It is better to have an article that covers the essentials well, based on reliable sources, than a diffuse article relying on trivia or unreliable sources to flesh it out.
These criteria do not impose arbitrary size restrictions (in terms of kilobytes, characters or readable prose). Good articles can be as short or long as is appropriate to the topic: WP:SIZE is not a good article criterion. However, size issues may be indicative of genuine GA problems with coverage (3a), concision and focus (1a and 3b), or the use of summary style.
Neutral: it represents viewpoints fairly and without editorial bias, giving due weight to each.
This point requires that the article is presented from Wikipedia's neutral point of view. The subject should be discussed in encyclopedic language, based on reliable sources, with due weight given to all significant viewpoints.
For articles on uncontroversial topics (such as a species of plant or animal), this is likely already covered by criteria 1, 2 and 3, especially if you watch out for word choice issues (1b). For controversial subjects (biographical, political, religious and health articles require particular care), you need to be sure that significant viewpoints are fairly and accurately represented, based on the diversity of reliable sources available (not just those favoring one viewpoint), and that the article does not endorse or favor a particular view through word choice, sentence structure, section titles, or article organisation. An article written from the neutral point of view provides the reader with information, allowing them to form their own conclusions.
Stable: it does not change significantly from day to day because of an ongoing edit war or content dispute. [4]
The footnote here is important: "Vandalism reversions, proposals to split or merge content, good faith improvements to the page (such as copy editing), and changes based on reviewers' suggestions do not apply."
Good article reviews are not supposed to interfere with normal editing. An article is unstable if there is a significant edit war underway, if editors are directly telling you that you shouldn't review the article because they're in the middle of major changes, or if the article is changing so dramatically and so rapidly that you can't figure out what you're supposed to be reviewing.
Illustrated, if possible, by media such as images, video, or audio: [5]
- (a) media are tagged with their copyright statuses, and valid non-free use rationales are provided for non-free content; and
- (b) media are relevant to the topic, and have suitable captions. [6]
Most GAs contain at least one image, but (unlike featured articles) they are not required to contain images.
If images have not been included and suitable images are not readily available ( Checking Commons for images is a good idea), then this criterion is automatically satisfied. If you think that free or fair-use images should be readily available, then please either find and add the images yourself, or recommend specific sources or images to editors.
If images have been included:
Point A requires reviewers to click every image (sound clip, etc.) to check its copyright status. If it is a free image (i.e., is in the public domain, or is released under a free license such as GFDL or Creative Commons) then Point A is satisfied. If it's a non-free image, then it must have a valid fair use rationale that specifically justifies its use in the article under review.
Point B says that every included image must be relevant to the topic, and must have a suitable caption. Purely decorative images, such as an image of a butterfly in a psychology article about emotions, should be removed. WP:ALT text, although easy to provide, is not required.
A good article is—
Well-written:
- (a) the prose is clear, concise, and understandable to an appropriately broad audience; spelling and grammar are correct; and
- (b) it complies with the Manual of Style guidelines for lead sections, layout, words to watch, fiction, and list incorporation. [1]
Point A means:
Point B lists exactly five pages of the WP:Manual of Style (out of about 50) that good articles must comply with. For the purpose of a GA review, all other parts of the MoS are optional. (The "Fiction" and "List incorporation" guidelines do not apply to many articles.)
Verifiable with no original research:
- (a) it contains a list of all references (sources of information), presented in accordance with the layout style guideline;
- (b) reliable sources are cited inline. All content that could reasonably be challenged, except for plot summaries and that which summarizes cited content elsewhere in the article, must be cited no later than the end of the paragraph (or line if the content is not in prose); [2] and
- (c) it contains no original research.
Point A means that there must be at least one section with a ==Level 2== header, containing a list of sources used in the article with section titles explaining the contents.
Point B names five types of statements for which the good article criteria require some form of inline citation:
This standard is higher than the absolute minimum standard set by policy, but noticeably lower than many editors' personal preferences. If an article contains none of these five types of statements, then Wikipedia:Citing sources#General references may be used. If the article contains any of these five types of statements, then some sort of inline citation system must be used for those specific statements. (All other article text may still be supported by general references.) Any system that allows the reader to connect a specific sentence with a specific citation is an acceptable inline citation method: editors may choose between <ref> tags or author-date parenthetical citations or any other system that is clear to the reader. However, one system should be used consistently for inline citations.
Page numbers (or similar details) are only needed when the inline citation concerns one of the above five types of statement and it would be difficult for the reader to find the location in the source without a page number (or similar detail).
Point C means that all facts, opinions and synthesis in a good article should be based on reliable sources with no original research. Statements made in the article should either be common knowledge or reflect the material in the sources.
Broad in its coverage:
- (a) it addresses the main aspects of the topic; [3] and
- (b) it stays focused on the topic without going into unnecessary detail (see summary style).
Point A means that the "main aspects" of the topic, according to reliable sources, should each be "addressed" in the article; it does not require comprehensive coverage of these major aspects, nor any coverage of minor aspects. For particular types of article, WikiProjects often provide helpful advice on what the main aspects are likely to be. (Do not, however, require compliance with any advice pages written by WikiProjects; only compliance with the policies and guidelines specifically named in the six Good article criteria themselves are required.) For an article on a work of fiction, a summary of the plot and a discussion of the reception are usually required. For an article on a disease, the causes, symptoms and treatments are usually significant.
Point B raises two issues. First, the article should avoid undue emphasis on tangents, such as
coatracks, and trivia. The inclusion of details and minor aspects can contribute to good writing, but such details should not overwhelm the article. Second, the level of detail of each aspect of the topic should be appropriate to the article and kept in balance: where an aspect of the topic involves information which is or could be covered in more detail by another article, the article itself should
summarize this information with suitable links, such as {{
Main|(the background article)}}
, where appropriate.
Taken together, these criteria mean that no obviously important information should be entirely absent from the article, and the level of detail should be appropriate to the significance of the information. It is better to have an article that covers the essentials well, based on reliable sources, than a diffuse article relying on trivia or unreliable sources to flesh it out.
These criteria do not impose arbitrary size restrictions (in terms of kilobytes, characters or readable prose). Good articles can be as short or long as is appropriate to the topic: WP:SIZE is not a good article criterion. However, size issues may be indicative of genuine GA problems with coverage (3a), concision and focus (1a and 3b), or the use of summary style.
Neutral: it represents viewpoints fairly and without editorial bias, giving due weight to each.
This point requires that the article is presented from Wikipedia's neutral point of view. The subject should be discussed in encyclopedic language, based on reliable sources, with due weight given to all significant viewpoints.
For articles on uncontroversial topics (such as a species of plant or animal), this is likely already covered by criteria 1, 2 and 3, especially if you watch out for word choice issues (1b). For controversial subjects (biographical, political, religious and health articles require particular care), you need to be sure that significant viewpoints are fairly and accurately represented, based on the diversity of reliable sources available (not just those favoring one viewpoint), and that the article does not endorse or favor a particular view through word choice, sentence structure, section titles, or article organisation. An article written from the neutral point of view provides the reader with information, allowing them to form their own conclusions.
Stable: it does not change significantly from day to day because of an ongoing edit war or content dispute. [4]
The footnote here is important: "Vandalism reversions, proposals to split or merge content, good faith improvements to the page (such as copy editing), and changes based on reviewers' suggestions do not apply."
Good article reviews are not supposed to interfere with normal editing. An article is unstable if there is a significant edit war underway, if editors are directly telling you that you shouldn't review the article because they're in the middle of major changes, or if the article is changing so dramatically and so rapidly that you can't figure out what you're supposed to be reviewing.
Illustrated, if possible, by media such as images, video, or audio: [5]
- (a) media are tagged with their copyright statuses, and valid non-free use rationales are provided for non-free content; and
- (b) media are relevant to the topic, and have suitable captions. [6]
Most GAs contain at least one image, but (unlike featured articles) they are not required to contain images.
If images have not been included and suitable images are not readily available ( Checking Commons for images is a good idea), then this criterion is automatically satisfied. If you think that free or fair-use images should be readily available, then please either find and add the images yourself, or recommend specific sources or images to editors.
If images have been included:
Point A requires reviewers to click every image (sound clip, etc.) to check its copyright status. If it is a free image (i.e., is in the public domain, or is released under a free license such as GFDL or Creative Commons) then Point A is satisfied. If it's a non-free image, then it must have a valid fair use rationale that specifically justifies its use in the article under review.
Point B says that every included image must be relevant to the topic, and must have a suitable caption. Purely decorative images, such as an image of a butterfly in a psychology article about emotions, should be removed. WP:ALT text, although easy to provide, is not required.