This blog was originally written on embeemobile.com on March 26, 2019 and is copied here for posterity. Pictures have had to be removed.
March
26, 2019
Writing successful and unambiguous surveys
depends on having clear and unambiguous questions. Furthermore, mobile
surveys are constrained by space on the screen, and it’s essential to ensure
that questions all appear above the fold on all screens.
Combining general rules and specific rules for
mobiles provides a checklist of Golden Rules that should be checked before any
survey is fielded. When you submit a survey in ResearchDesk™,
adherence to these Golden Rules is checked.
The purpose of these rules is two-fold:
quality and quality. You want respondents to absolutely answer the question you
posed (not what they thought you asked), and you want respondents to remain
engaged throughout the survey giving the most thoughtful answers they can,
without dropping out.
This blog details the following Golden rules:
General Survey Structure
·
Don’t waste respondents
time
·
Clear language
·
Phrase questions as
ACTION – QUESTION – CONTEXT
·
Highlight differences
between similar sequential questions
·
One question per page
·
Eliminate jargon (or
thoroughly explain it)
·
Short sentences
·
Eliminate cultural
references
·
Never go below the fold
·
Require every question
·
Remind the user what they
said
·
Allow going back to
change answers
For specific question types
·
Radio Button and Checkbox
questions
·
Inclusivity
·
Uniqueness
·
Monoconcept
·
Exclusive answers
·
Number of answer options
·
Flipping and randomizing
answer options
·
Matrix questions
·
Ranking questions
·
Text questions
General Survey Structure
Don’t waste respondents’
time
If there is a set of questions that some
respondents might not be interested in, then add a question before the group,
and allow the respondent to skip all the questions.
For example: Don’t ask a respondent to rate a
set of films that have seen at the cinema in a series of 20 questions that ask
them to rate each film. Instead, ask them a question “Have you been to see a
film at the cinema in the last 6 months?” (Yes, no), then “Which of the
following films did you see?”, and give them the list of 20, and then only ask
them about the films they’ve seen.
Online (desktop/PC) respondents can easily
quite easily scroll through long lists, especially when they have a wheel on
their mouse. However, because the equivalent is more cumbersome on a small
touchscreen (without missing bits), it’s really important to minimize the amount
of unnecessary words that a mobile respondent needs to absorb.
Clear language
Every question and answer choice should be in
the clearest possible language. Many professional survey designers are at their
peak when they have an eight-year old child. Eight-year olds make the best
proof readers of survey questions. Design your survey for an eight year old.
The reason for this is quality. It’s bad
when a respondent does not understand the question and gives you an
ill-considered answer. It’s much worse when you don’t know if
the respondent has given you an ill-considered answer.
If your text is ambiguous, then you can’t know what the respondent understood by the
question. The results are worse than useless: they could be completely
misleading.
Phrase questions as
ACTION – QUESTION – CONTEXT
When wording a question, try to get the actual
action as close to the beginning of the sentence. This helps the respondent to
be reading the actual question in light of what you want them to do about it.
For example: (bad
example) “Considering all the times that you have been to see a
movie in a movie theater in the last six months, select the three most
important reasons why you buy popcorn.”.
There are usually three things in a question:
Action: (what
you want the respondent to do) — “select the three most important reasons”
Question: (what
you want to know) — “reasons people buy popcorn”
Context: (when/where
etc) — “at movie theaters in the last six months”.
The structure of a question should typically
follow the pattern:
ACTION — QUESTION — CONTEXT
Putting the action first helps the respondent
to be prepared to know what they need to do and can be thinking about it while
the read the rest of the question.
Having the question next is important because
we want to absolutely have the respondent thinking.
Putting the context last is usually
appropriate, because most often this is going to be the same context as the
previous questions. We need to have the minimum amount of the respondents
attention at this point, because they are probably already aware of the
context.
For example: (rewritten) “Select
the three main reasons you bought popcorn when you went to a movie theater in
the last six months.”
When writing for a desktop, you have more
space on the screen. It’s very common to drop the action to a new line after the question, in a different font. This is
fine on a desktop, but is too greedy on real-estate to be appropriate for a
mobile survey.
There are times when you are fundamentally changing the context. When this happens,
you sometimes see a desktop-focus question that starts “Considering
all the times that you’ve been to the cinema in the last six months…”. This is
ok on a PC, but the question and action get lost in a plethora of text when
using a mobile. You sometimes see questions written like this for every question, and in this writers opinion, that
is not even ok on a PC, and absolutely not OK on a mobile.
So, what should you do when you are
transitioning the context, and the survey is a mobile survey?
Answer: you should recognise that changing the
context mid-survey is like a section break in a book. You should create a page
specifically to change the context, then carry on with the
ACTION-QUESTION-CONTEXT approach, starting on a new page.
For example: you have been talking about
buying popcorn in grocery stores, and now you have a bunch of question about
buying popcorn in movie theaters.
Create a page that says something like “Thank
you. Now we’re going to ask about popcorn in movie theaters”, on its own, with
nothing but a Next/OK button to go to the first of the second set of questions.
Highlight differences
between similar sequential questions
When you need to ask the same question about
multiple things (which in olden days was a matrix question), the respondents’ experience is
to physically see one question per page, and each page looks almost identical.
Therefore, you should draw the respondents’
attention to what has changed. Bolding the change is usually perfect for the
job.
This is not just to be helpful. If the
difference from the previous question is buried deep in the sentence, then a
respondent might end up accidentally checking a response to a different
question. This happens often when the original question was a matrix question.
(See Matrix questions below).
This is particularly important with mobile
surveys, because there’s often less white space, and the other questions are
not likely to be on the same page.
You’re trying to help the respondent in the
scenario where they have read the question, but been interrupted and have
forgotten precisely what you were asking about. Help them to visually find it
without having to read the whole question again.
Alchemer Tip: you can change the formatting of the question part
of a matrix question centrally in the Style section of Alchemer. There’s a
section called “Custom HTML” (or “Custom CSS”), and you can insert the
following to change the colour for the question of all matrix questions:
/* Write your custom CSS here */
th.sg-first-cell{color:#ff6600; font-weight:
600}
label{border:0 !important;}
In this case, we’re changing the color to orange, and making it bold.
font-weight is normally 600, but is a value between 0 and 1000. 600 works well
for this.
We’re also changing the label to have no border. This makes Alchemer look less
busy.
One question per page
Ensure that there is one question per page.
Every question should fit on the page, and you the respondent should never need
to scroll.
It is always better
to have lots of pages rather than crowded pages.
In addition, try to find whatever option
works to minimize the number of times that the respondent has to find and press
something. For example, in SurveyMonkey, they have an option called “Question
at a time”, which puts one question on each page. However, this actually presents an “OK” button, followed by a
“Next” button. By switching this option off, and then adding
a page break between each question means that the respondent only has an “OK”
button, which turns the page.
Eliminate jargon (or
thoroughly explain it)
You’d have thought this would be obvious, but
industry jargon is the biggest reason why consumer surveys fail. You should use
language that all respondents will understand unambiguously. Remember the
eight-year-old rule.
However, it’s not always easy to avoid
industry jargon when your survey is about something
that only the industry knows about. When this happens, you need to explain what
you mean.
You can even test the respondent. Why not,
it’s fun! Respondents will just as merrily spend 20 minutes doing something
fun, rather than 3 minutes doing something mind-numbing.
For example (made-up):
Q1: “This survey is about Sprankots. A
Sprankot is a photo-torpedic device embedded in your brain, which sends images
from one location to another, which could be used to telepathically send images
of what you are seeing to a friend who also has a sprankot implant”.
—(page break)—
Q2: “Where would you find a sprankot?” [“on
the Play store”, “in my head”, “on my television”, “in a laser guided weapon”,
“none of these”].
Q2 would have validation so that if they get
the answer wrong, they would be instructed to go back and re-read.
Short sentences
The purpose of a survey question is to
accurately extract information/opinion from the respondent into your dataset.
Keep it as simple as possible.
Eliminate cultural
references
Unless you explicitly know that the respondent
will understand a colloquialism or a cultural reference, don’t use one. You
don’t know the respondent, so you can say with certainty that you don’t know for sure they will understand.
For example, don’t refer to “scoring an own
goal”, or “shopping on Broadway”.
Sports analogies very often end up in surveys
which end up going international… these don’t work, especially since few people
around the world play or understand the sports played in the USA, and vice
versa.
Never go below the fold
When planning for a mobile, long questions are
the start of failure for a survey. Respondents often can’t read all the
question, and if they have to scroll up and down in order to understand what
you’re asking, they will lose patience and give up, or they will get confused
and be more likely to give an incorrect answer.
It is ALWAYS better on a mobile to break a
long question into smaller questions whenever possible.
Three short questions takes less time than one
long question.
Some experienced survey designers tend to link long questions,
because their experience comes from the online survey design world, where real
estate was less of a problem, and because 10 years ago, sample houses (firms
who provided access to respondents) charged by the question. Therefore, they
have been brought up believing that one long question is necessarily better than
3 short questions, because it’s cheaper.
This is NOT the case on mobile.
Require every question
It’s much easier to ‘fat finger’ (accidentally
press the wrong thing) on a mobile than it is on a PC. It’s good practice to
require that every question has an answer, in case they click the “OK” button
twice by accident. If a question is required, the second time they press the
“OK” button, they will not be allowed to continue.
Remind the user what they
said
It’s often a good idea to start a question
with “You said you shopped at Kmart”…
It not only provides context to the next
question, but allows the respondent to spot if they have mis-clicked
previously. This is especially good if you have a question that was not
worded in the same way (because you were trying not to lead the question
before). Here, you’re describing your interpretation
of the previous answer, and giving them a chance to ensure they have not
mislead you.
It also gives the impression that you are
listening and care about what they are saying.
This is especially useful in the first
question after a branch, where the consequences of branching based on an
incorrect answer are more serious.
(See also the ACTION-QUESTION-CONTEXT Golden
Rule above)
Allow going back to
change answers
Respondents can fat-finger, or simply
realize that they’d misread a previous question. There’s (almost) never a good
reason not to allow them to go back and give you a better answer.
The only exception to this rule is if you have
complex screener requirements, and there’s some structure in your questions
that would make a respondent know that they were about to get screened out, but
they haven’t actually been screened out at that point.
For specific question
types:
Radio Button and Checkbox
questions
Inclusivity
Every imaginable scenario that the respondent
could have must be included. If this is not possible, then an “other” or “none
of the above” answer should be allowed.
Uniqueness
For radio button questions, in
every imaginable scenario, there should not be
two possible answer choices. If the question requires that multiple answers are
possible, the question must ask the user to choose the one that most applies.
Monoconcept
No survey question should have more than one
concept. It is always better to break a question mixing multiple concepts into
two (or more) questions. This applies equally to answer choices.
For example: “Why do you like Acme Inc?”.
Answer choices: “Because they are competitively priced and I can save money”.
This answer option has two concepts: that about them being competitively
priced, and that being the respondent thinks he can save money.
When concepts are mixed in the question, the
respondent might be answering about one concept, the other concept, either
concept or only if both concepts apply. As a survey designer, you will have no
idea on what question the respondent answered, and the question has no value
and should be purged.
Exclusive answers
For checkbox questions: These
are “none of the above” answer choices. When a respondent clicks on one of
these, they should not be allowed to answer any other option. Most survey
platforms allow an answer to be ‘exclusive’ or to write question/page
validation to ensure this.
If you allow the possibility for a respondent
to check “None of the Above” as well as one of the answer choices, you will
need to make business rules to decide whether to keep that response, or to
purge it. This is unnecessary. It is always better to make it so that it’s not
possible to have to make that business rule.
Number of answer options
The number of answer options should not be
more than about 5. This is because, on a mobile, some of the options will fall
below the fold, and these are less likely to be clicked.
If you have more than five answer options, try
to break it into more than one question, or pipe in a reduced number from a
previous question.
If you still have more than 5 answer options,
you should consider using a dropdown instead. In general, survey platforms do a
good job of rendering dropdown questions, though you should check what it
actually looks like on an Android phone. However, nothing beats restricting the
answer options.
The exception to this rule is where the
respondent will know the answer without reading the answer choices (e.g. “In
what state do you currently reside?”). In these cases, dropdowns with many
options are perfectly acceptable (see Flipping and randomizing answer options).
Flipping and randomizing
answer options
Flipping or randomizing answer choices is
often a good idea, because some respondents are more likely to check answers
that are higher up the list than lower. ResearchDesk panelists are better than
many, but there will always be respondents who don’t read an entire question
before selecting answer choices.
Randomizing puts
the answer choices in a random order. Your survey platform should allow you to
ensure that any exclusive answer
choices are not randomized and remain at the bottom of the list.
Flipping randomly
turns the answer options up-side down for half of the respondents.
The first thing you need to decide is the way that a respondent will think about
answering your question. You need to distinguish between questions where
the respondent knows the answer before reading the answer choices, versus one where
the respondent is choosing from
the answer choices.
If the respondent knows the answer in advance
(e.g. “What state do you live in?”), then your objective is to help the
respondent find the answer as easily as possible. In this case, many answer
options are OK (though should be in a dropdown), but they should be
alphabetical.
Most questions, however, the user is selecting
from the answer choices provided. The question to ask yourself is “are the
answer choices cardinals or ordinals?”.
A set of cardinal answer
choices are where there is no natural order (e.g. apples, bananas and
couscous).
A set of ordinal answer
choices are one where there is a natural order (e.g. “love”, “like”,
“indifferent”, “dislike”, “hate”).
Ordinal answer options should never be randomized.
Ordinal answer choices can be flipped, but it’s generally better to
ensure that the flip is the same for each respondent. So, if a respondent has
been randomly allocated to be a “flip” respondent, then they should see all
ordinal questions flipped, or none flipped, but not some mix of the two.
Cardinal questions should be randomized, but if a series of answer
options is going to be repeated regularly, then the randomization should be the
same if possible, especially if the list of options is long.
Matrix questions
A matrix question used in an desktop survey is
where you see a grid of answers. It’s very common to see questions written for
mobiles which were originally designed for desktop, but which are being
rendered as a mobile survey.
Matrix questions rarely work well on mobiles,
though some survey platforms will do the best they can. Many survey tools will
convert a matrix question into a series of questions that are exactly the same
as each row.
These are really unpleasant for the user. The
respondent sees a sequence of very similar questions. In these cases, it is
essential that the difference between the questions is highlighted to the
respondent.
None-the-less, repeating the same question
over and over is bad practice on a mobile. The respondent does not get the
benefit of being able to see a consistent structure as they would on a desktop,
and it feels repetitive. Expect high drop-outs and low quality answers.
If you absolutely must use a matrix
question, make sure that you have detailed branching to ensure that only highly
relevant questions will appear for the user. If necessary, ask a question
before the matrix question to find out what is relevant. Also, make sure that
the bit that changes in each question if visibly different. (See CSS
modification above).
Ranking questions
Ranking questions are often great questions.
These require the user to select some or all of the answer choices and put them
into an order and is sometimes called “Forced Ranking”. Ranking questions are
only appropriate for cardinal answer
choices.
Most survey platforms do a good job of
rendering ranking questions on mobiles, but you should test this (on a mobile)
to be sure.
If you have lots of answer options, then you
should break the question into two questions. The first question asks them
which are relevant, and the next question (which is branched assuming there’s
more than one that is relevant) asks them to rank those that are relevant.
Ranking questions should be randomized,
but when splitting a question with lots of answer choices into two, you
should ensure that the answer options are in the same sequence for the two
questions. Most survey platforms will naturally pipe answer options from a
previous question in the order they were presented, but you should check this
is the case with your survey platform.
Text questions (Open
Ends)
Mobile phones are not as easy to type into as
online surveys. You should avoid text questions. Where you do need a text question,
structure the question so that a short answer is adequate, and if you have
question validation based on the length of the question, then this should not
be too onerous.
Questions sometimes ask for brand names to be entered
unprompted. (e.g. “List any movie theater chains you can think of”). These
questions are very hard to handle on a mobile, because many respondents will
answer, but the results you get will, in many cases, be the spellcheck version
of the brand. Because of this, you should consider any other ways of getting
unprompted information from the respondent without depending on them typing the
names precisely.
Alchemer tip: within
input boxes within Alchemer, there is a validation option where you can write a
very long list (thousands if need be) of possible answer choices. You paste in
the list of possible choices into the answer validation, and make a setting to
auto complete when the respondent has typed enough letters. This is a great way
to get a validation response when there are thousands to choose from (e.g.
movie chains), and you don’t actually want to list them out. When using this,
there should be an option for panelists to write in a movie chain without
passing the validation (see inclusivity rule above).