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In a study where human subjects are given questionnaires, it may be interesting to analyze whether effects are gender-specific and/or more pronounced in one gender than in (the) other(s). How can this information be gathered in a way that respects every individual independent of gender? How many checkboxes does one need for the question, and how should these be labeled?

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    I believe this could also depend on local culture? Which country are you in? – user96501 Jul 29 '18 at 18:26
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    Related in UX: Order of male and female in survey form – Ooker Jul 30 '18 at 3:10
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    The answer to this question should depend on why the data is collected so that one actually gather the relevant information (be it gender, sex or other). – Drakryttare Jul 30 '18 at 10:04
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    @Drakryttare, see, for example, the XKCD color name survey: since color vision has a strong genetic component, the question asked was "Do you have a Y chromosome?" – Mark Jul 30 '18 at 20:55
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    @Mark: And ironically, the results ended up focusing infinitely more on gender than on chromosomal configuration; see, for example, blog.xkcd.com/2010/05/06/sex-and-gender. This is hard to get right! – ruakh Jul 31 '18 at 2:41
95

I have previously seen this done in the following simple way:

  • Female
  • Male
  • Other (fill in blank) ________
  • Decline to Answer

This makes the common case (Male/Female) easy to code, allows unbounded expression for people who don't fall into that category, and also allows people to opt out of providing the information.

Your IRB, of course, will need to review this just as they do with all other parts of your survey.

  • Comments are not for extended discussion; this conversation has been moved to chat. – aeismail Jul 30 '18 at 10:43
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    What is IRB and is it country-specific? – Tommi Brander Jul 30 '18 at 13:46
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    @TommiBrander IRB is an Institutional Review Board and they approve any experiments done on people for ethical and other concerns. They most likely are country specific, bot I expect the idea translates to most places. – Ukko Jul 30 '18 at 14:10
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    Many hundreds of years ago I saw a form that collected this information using the categories "plugs" and "sockets." I remember fondly the woman who wrote this form. She's an electrical engineer. (You can't get away with this in 2018.) – Bob Brown Aug 1 '18 at 2:09
47

One option is not to have checkboxes at all. Just give people a single free-text field, let them write whatever describes their gender best, and then use manual or automated methods to code those responses into categories. Optionally include a prompt along the lines of "e.g. male, female, genderqueer" to clarify that non-binary answers are welcome.

Advantages

This approach guarantees that everybody can give the answer that fits them best, and it's unlikely to offend anybody except those who resent being asked for their gender at all. You don't have to work through a long list of gender variations trying to anticipate every option that somebody might want, and it puts everybody on an even footing without the problem of "othering" (see below).

Disadvantages

It does require a bit more work on the experimenter's side since you need to set up a coding system. But this is less than it might seem, because again you don't need to decide in advance for every possible response that somebody might give; you only need to determine rules for the answers that people actually gave. Mostly likely you will end up with 90%+ that can unambiguously be classified as either "male" or "female", and a small percentage of non-binary responses.

Some people may use a free-text field to write nonsense answers, but this is a good thing; these people are likely to give bad answers to checkbox questions too, so filtering them out of the results is a Good Thing.

Analysing non-binary responses

In theory, you might then end up with some complicated decisions about which non-binary responses should be categorised together for data analysis. In practice, this question will probably be largely answered by issues of sample size. Unless you're running an exceptionally large survey or targeting populations with an unusually high percentage of non-binary people, you probably won't have enough non-binary responses to get meaningful findings for any categorisation finer than "non-binary", if even that.

This doesn't mean that you shouldn't try to make the design respectful of non-binary people; it just means that your main reason for doing so is "treating people with respect", rather than data collection per se.

Side points

Stealing some good points from other people's answers, it's worth considering the purpose for which this data will be used, and to check your institution's policies on human subjects research for guidance.

What is "othering"?

For those not familiar with the concept of othering: many classification systems emphasise the characteristics of the people who designed them, or those considered more important, with "other" used as a catch-all for many different things whose only common characteristic might be that they're unfamiliar/unimportant to the designer of the classification. This excellent series from Robot Hugs discusses the issue in detail, giving a couple of examples from the Dewey Decimal System: its religion section has seven two-digit categories for various topics from Christianity, whereas all non-Christian religions are lumped together in a single "Other religions" group, and the same ratio for European vs. non-European languages.

This sort of framing can be disrespectful to "others", since it can be read as saying "the most important thing about you is that you're Not One Of Us". It also presents the possibility of bias; if researchers from different cultures make different decisions about what gets "othered" in their forms, it's hard to compare results. (Even if both forms have text fields that allow people to enter custom answers, respondents may be more willing to tick a box than to write it in.)

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    "let them write whatever describes their gender best" I did that and got some apache attack helicopters and in general about 25 different genders which isn't useful at all... – DSVA Jul 29 '18 at 17:25
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    @Blackhole well, only male and female excludes some people, so having another option is pretty much required. However, if you provide an open answer you get a lot of different genders which just isn't useful for any kind of analysis. If I got a thousand answers with 950 falling into male/female and 50 falling into one of 23 other categories. It doesn't make any sense to have subgroups with only 1 or 2 answers in them so you start pooling everything together as others/don't want to say and you can just do that in the first place (which I will do in the future) – DSVA Jul 29 '18 at 18:04
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    @DSVA: That's very useful. You know anyone who writes "attack helicopter" is a transphobic troll and their responses are probably not valid data. – R.. Jul 29 '18 at 22:00
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    Anyone who writes "apache attack helicopter" is making fun of your free-form gender field. If the rest of the survey has nothing to do with gender identity, I don't see why they would put invalid data there. – immibis Jul 30 '18 at 0:06
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    @DSVA You may want to reread the original question. OP didn't ask "how can I get gender information in a way that will let me split analysis by 23 different categories?" They asked "how can this information be gathered in a way that respects every individual regardless of gender?" and my response is intended to address that question. If you reread my answer, you may see that I already acknowledged the issue of small subgroups. – Geoffrey Brent Jul 30 '18 at 1:14
32

The honest, if slightly cop-out answer, is that it depends on what you need the data for.

I'll break it down further:

Section One: Gender

Let's say you're doing a sociological study in which you're looking for gendered trends. You have a few options here, which I'll outline some of the pros and cons of:

Option One: Free Text

What is your gender? [Free text input field here]

However, this runs into a few issues.

  1. People might answer in bad faith (e.g., "apache helicopter" from above). There's a valid argument to be made that this can be used to just disqualify their data, but depending on how much you're manually reviewing this data vs. automatically parsing it, it might result in artificial inflation of the nonbinary data if your data parser treats anything but "male" or "female" as nonbinary.
  2. Typos happen. If you're manually reviewing the data, it's not a huge deal if someone screw up and enters "fmeale", but if your data will largely be handled algorithmically, you're going to have to get some extensive typo handling.
  3. Even without typos, you're going to have to have some extensive 'synonym' consideration if you're algorithmically parsing your data. For example, "m" and "male" will definitely map to the same category. But what if someone enters "trans man"? Are you separating cis vs. trans binary identities in your analysis, or no? Either is fine, depending on what you're planning on doing with the data, but it's a decision you'll have to make. Also, if you do want to analyze them separately, you may want to break it down.

Generally, this is a good option if you're mostly going to be manually reviewing your data, but if you're planning to let a computer analyze most of it, this probably isn't your best option.

Option Two: Radio Buttons

Let's be honest. Unless you're specifically surveying nonbinary/LGBPTQIA+ audiences, you're probably not distinguishing between "genderqueer", "agender", "genderfuild", etc. If you're only looking for broader trends, you might consider the most basic possible situation, which is just a static select list of:

  • Male
  • Female
  • Nonbinary

This avoids the "othering" of the literal "other", but allows you to avoid having to parse extra data/sanitize potential invalid responses. (That having been said, you're free to tack on a free text box next to "Nonbinary" to let people enter in their gender, which you can either save for the extra data or quietly discard.) This is also a lot less likely to see bad faith data entering, as people tend to answer more honestly if you don't let them do "apache helicopter" jokes.

Generally, this approach is good if you're going to be letting a computer process most of the data and you don't need to differentiate between cis vs. binary trans individuals in your results.

Option Three: More Radio Buttons

But what if you're going more in depth into trends based on cis vs. trans identities and you do need to distinguish in more detail than "male", "female" and "nonbinary"? Then my suggestion is just to add based on the categories you're tracking. For example:

What is your gender?

Terminology note: "cis" means that you identify as the same gender you were assigned at birth. E.g., if you were raised as a girl, and still feel like a girl, you are cis. Intersex individuals, please choose based on the category you feel best describes you.

  • Cis Man
  • Cis Woman
  • Trans Man
  • Trans Woman
  • Nonbinary (You can specify "Nonbinary, Assigned Male at Birth" and "Nonbinary, Assigned Female at Birth" if you need the data, but it can be considered a bit invasive, so I suggest not including it unless you really do need it.)

Generally, this approach is good if you're going to be letting a computer process most of the data and you DO need to differentiate between cis vs. binary trans individuals in your results.

Section Two: Sex

Let's say you're doing something medical, where physical sex is the relevant feature here. You might think that this would be easier. Unfortunately, you would be wrong, for two reasons:

  1. Trans people may be on hormones which will skew the results for their sex
  2. Intersex people exist.

So with that in mind, let's consider a few scenarios here, and what their advantages/disadvantages are.

Option One: Just the Y Chromosome, please!

Some people have already linked the XKCD blog post on the matter in here. For those who haven't checked that link out yet, the basic idea is that XKCD was doing a survey based on how people see color. Since colorblindness rates are closely linked to someone's sex chromosomes (as the colorblindness gene is carried on the x chromosome and is recessive), the survey made a decision to ask if someone had a Y chromosome or not. I appreciate how Randall handled it. It was a sensible question for his usage.

I also think it was the wrong question to ask. Not because of any sensitivity concerns, but because I think it'll skew his data for XXY individuals. Granted, XXY people with colorblindness genes are... a very small subset of the population... but if it's data you're interested in, this will skew it. I'd say that unless it's something actually carried on the Y chromosome, don't ask it like this.

Option Two: Just the Chromosomes, Please

Say you're doing something like the case above, where you're tracking colorblindness based on chromosomes. I'd honestly suggest something like this:

Please select your sex chromosome configuration here. We need to know this because colorblindness is related to sex chromosomes. If you do not know your chromosomes for sure, please take your best guess based on your sex. Men will typically have XY chromosomes, and women will typically have XX chromosomes. Trans individuals, please answer based on the sex you were assigned at birth. * XX * XY * X * XXX * XYY * XXXX * XXXY * XXYY * XXXXY * XXXXX

(You may also go more in depth and just ask for all options listed under Sex chromosome disorders, as well as the most common XX/XY.)

This, obviously, is a very long list, but here's the thing: if you need chromosome information, you need chromosome information. Don't shortcut it just because it's rare. It might not be a lot of data, but it's still data.

Section Three: It's More Complicated, Actually

But what if you need more data? What if you're studying something correlated with hormone levels, or with socialization, etc.? This is above and beyond the hardest scenario here, because there's so many possible options. People can complain all they want about PC culture and having too many genders, but the fact is that you're looking for data on lived experiences, and you don't need to approve of their gender identity to acknowledge that it's going to affect your data. In this case, you might consider doing one giant kitchen sink list that includes all options. I really don't suggest this. I even tried doing a list of options just for that case, and this is as far as I got:

What is your gender? Terminology note: "cis" means that you identify as the same gender you were assigned at birth. E.g., if you were raised as a girl, and still feel like a girl, you are cis. Because we are also considering the impacts of hormones, we need to know information such as intersex configurations and hormone therapy. Please choose the best fit of the following:

  • Cis man, non-intersex
  • Cis woman, non-intersex
  • Trans man, non-intersex, no HRT
  • Trans man, non-intersex, HRT
  • Trans woman, non-intersex, no HRT
  • Trans woman, non-intersex, HRT
  • Nonbinary, assigned male at birth, non-intersex, no HRT
  • Nonbinary, assigned male at birth, non-intersex, HRT
  • Nonbinary, assigned male at birth, non-intersex, no HRT
  • Nonbinary, assigned male at birth, non-intersex, HRT

And I didn't even finish! I got to the point where I had to try to break down intersex options and I gave up. This is a terrible list and no one wants to deal with it, on either end.

So instead, do it better: just ask multiple questions. My personal suggestion would be something like:

Question One: What is your gender? [Choose one of the questions from section one, as your data requires]

Question Two: What is your sex? [Choose one of the questions from section two, as your data requires]

Question Three: If you have a uterus, have you started or undergone menopause?

Question Four: If you are trans/nonbinary, have you undergone hormone replacement therapy?

[Continue to ask questions as you need]

Section Four: The Conclusion

Again, this is a complicated question, and you can get either fairly simple or fairly complicated implementations as your data requires. In general, however, you can keep the following guiding principles in mind:

  1. What data do I need?
  2. What are all of the possible cases for the data I need?
  3. What is the best way to account for all of those cases in a way that my survey responders will understand?
  4. Don't cheap out just because it will cover "most" of the cases you need. No one likes to be excluded, and excluding data, even outlier data, will impact your results.
  5. Don't be a jerk. Just because it isn't your experience, doesn't mean it isn't someone's. Be respectful, and be open to feedback from participants.
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    +1. Don't be a jerk. And everything else you said. – Buffy Jul 30 '18 at 15:39
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    One alternative to your section three that is amenable to computer analysis is to create a binary tree of yes-no questions. Root is something like, for example: "Do you now identify as male?". Each answer, combined with all previous answers, is used to select the next question, say, for "no": "Have you ever self-identified as male?". It is complex as you suggest and implies a complete analysis that is tailored to your need and also sensitive to the understandings of others. Being complex, you need to justify your need for the information as you say (sociological, medical, vs curious). – Buffy Jul 30 '18 at 15:49
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    This is an excellent and comprehensive review. +1, and welcome to the community. – Stella Biderman Jul 30 '18 at 17:47
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    @Buffy The way I've seen the terms sex vs gender used by LGBT people and in contexts trying to be sensitive to them is to use "gender" to specifically refer to the phenomenological experience bit, and sex to refer to the more nebulous, multi-factor one. I think that you've identified three of the major aspects of sex, though chromosomes should also be on that list as a fourth major factor. I'll also note that your historical description is lacking: many cultures from many time periods have had more than two genders. A partial list can be found here: en.wikipedia.org/wiki/Third_gender – Stella Biderman Jul 30 '18 at 17:52
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    Just asking... How many people know their chromosome types? Would I know if I had something other than XY/XX ? I have never been tested for that. – Falco Jul 31 '18 at 8:13
15

I'm surprised to not see a format that I've been seeing with regularity over the last few years (UK Academia):

  1. How do you describe your gender:

    • Male
    • Female
    • Other ______
    • Prefer not to say
  2. Is your gender the same as that assigned at birth:

    • Yes
    • No
    • Prefer not to say

It's totally unambiguous and you get definitive information but it gives respondents total control of how much information to give without boxing them in to options.

12

I know in today's climate this isn't a particularly popular approach but depending on the context of the study it may be most appropriate to ask about biological sex (aka whether or not they are in possession of a Y chromosome) rather than gender.

This way it is unambiguous, you either have a Y chromosome or you don't.

In biological/clinical studies this would probably be the most sensible approach but in the social sciences this may prove insufficient and one of the methods above may prove more useful.


In light of comments about this suggestion being transphobic (it isn't but people are sensitive in the US), the other answer is to ask whether or not you were born in possession of a penis, a vagina or both but that comes across as a little crass.

I would also add that unless it is absolutely necessary for your study to know the gender/sex of your participants, just don't ask.

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    An extended discussion on this answer has been moved to chat. Many useful points have been raised there; please visit the linked chat room to see the concerns raised by some users and/or to discuss your own perspective on this answer. (See this meta post for more info.) – ff524 Jul 31 '18 at 15:03
9

If you are in the US you should (must) ask this question of your IRB. The answer may depend on the overall nature of your study, not just this one question. They will probably want to know how you intend to use this information (and everything else).

Rather than Male, Female, blank. It might be Male, Female, Decline to Answer. Even that will, however, offend some people who are, for example, non-binary. But if you think you need to list all possibilities you have quite a number of self identified genders. And you would have to justify the question. Some will consider the question intrusive for some purposes.

If you are not in the US, then local laws may also apply to any study with human subjects and you need to know this. I don't know the law in Germany.

One option that may be acceptable is to not use a bulleted list, but a field in which people can characterize themselves. This makes for a more difficult research design, of course, since you don't know in advance what the responses will be. Moreover, depending on who fills out the questionnaire, the results might be more creative than you like, as mentioned in the comments here.

Of course you don't know that people will answer honestly in any case. This could occur if you are asking for sensitive information otherwise.

Yet another complication for such research, that needs to be considered in the design. If you get, say 90% "male" responses, how to you make a determination about whether the results differ by gender? It's not impossible to do, of course, but you have to have a plan.


Based on a comment I made to the excellent answer of Amber B., an alternative to a bulleted list or an open-ended field and that is amenable to computer analysis is to create a binary tree of yes-no questions. Root is something like, for example: "Do you now identify as male?". Each answer, combined with all previous answers, is used to select the next question, say, for "no": "Have you ever self-identified as male?". It is complex as you suggest and implies a complete analysis that is tailored to your need and also sensitive to the understandings of others. Being complex, you need to justify your need for the information as you say (sociological, medical, vs curious).

The next answer, however, must be based on all previous answers, not just the recent one. It may be that "currently" identifying as male may not be enough, and that lots of combinations are possible. But this, at least gives you a way to analyze the results.

And I'll also note, based on my other comments there that: there are at least three independent factors in sex/gender. Your mind, your "plumbing", and your hormonal system. (I'm not a medical geek, but think that chromosomes have an influence on both plumbing and hormonal structure. All have an influence but none is absolutely determinative. In the past people discounted your mind - what you thought - and imposed a classification on you. Now, with modern medicine, surgery, and pharmacology, a person can bring the three to a self-desired balance. We now recognizes that people have choices as well as biology where this was denied in the past, and, by some, even now.

Finally (perhaps), none of those three factors is binary, not even chromosomes. All three have a range of values that combine into "who we are".

  • Your "Rather than... Blank" seemed to miss noticing the point I made in my comment that "blank" could be offensive... – Solar Mike Jul 29 '18 at 11:39
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    Your recommendation leaves many people stuck with "decline to answer" even if they want to answer. – R.. Jul 29 '18 at 22:05
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    @R.., I guess I don't see that. A trans male will comfortably answer male unless they don't wish to answer at all. Many people, whether in small demographics or large may also decline to answer, especially if they feel it is irrelevant to the other questions. But note that I didn't claim this was the best solution. What I do claim is that if you want to ask such questions you need a very valid reason for doing so, and if you need a fine-grained breakdown you need a much better vehicle than a simple set of radio buttons. – Buffy Jul 29 '18 at 22:11
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    @Buffy: It's not particularly trans exclusive, but is exclusive of nonbinary ppl. – R.. Jul 29 '18 at 22:23
  • @R.., yes, of course. TY – Buffy Jul 29 '18 at 22:25
4

This is really an experimental design question. The first question you probably want to answer is are you interested in sex (i.e., the biological construct) or gender (i.e., the social construct). The second question is how are you going to analyze the data. Unless your are actively recruiting individuals with particular genders, the odds of a random convenience sample having enough individuals that do not identify as a man or a woman means to do meaningful statistics, means you probably can get away with an other group.

Including a "decline to answer" option also depends on your experimental design. If you want to given them a decline option you can make the option other/decline if you are going to group them together. In a random convenience sample, you might get enough individuals that decline to answer that you can do stats on them as a third group.

As with all studies involving human subjects, make sure that you get IRB approval or that the study meets the requirements to be exempt.

3

It does rather depend on whether you are interested in gender or sex. As has been pointed out, neither is easy, but can be relevant.

The best wording I've seen for the gender question is "What, if any, do you consider your gender to be?". You might get some silly answers to this, but as has been pointed out, if someone answers "Attack helicopter", this is probably a good reason to exclude all other answers from that person.

For sex you should make it clear in the question you mean sex and not gender. There is no hard an fast rule to tell someones sex, and as has been pointed out some individuals are intersex, but with a large enough sample, people answering this question "wrong" should even out.

3

As another idea, the 2017 Nerdfighteria Census used a "check all that apply" strategy:

  1. Gender (check all that apply)?

    ☐ Female
    ☐ Male
    ☐ Genderqueer
    ☐ Agender
    ☐ Transgender
    ☐ Gender fluid
    ☐ Questioning
    ☐ Non-Binary

    Other (please specify) ________

(See also the analysis of results for that survey here.)

protected by StrongBad Jul 30 '18 at 15:36

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