Need help with reporting percentages

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1 year 7 months ago #166607 by evinsmj
Hi, everyone!

I'm having difficulty understanding the percentages when I export a PDF report of my survey results. I attached a screenshot of one of the questions. The total number of responses in this export/filter is 732 (100% of the total responses).

As you can see from the screenshot, the percentages don't seem to correlate. For answer selection "1," there were 6 people who selected it. If that number is out of the total number of responses (732), the percentage would be .82%. Answer selection "3," the percentage would be 4.92%.

I even tried using 563 as the denominator (total number of responses without "no answer" or "not displayed") as well as 580 (total number of responses, including "no answer"). None of these line up.

Can someone help? Thanks!

Matt
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1 year 7 months ago #166608 by jelo
What version of LimeSurvey do you use?
The reporting looks buggy. Mean and deviation with 0 looks buggy to.

Personally I never used the reporting tool for anything serious.
I recommend open a bugticket and post the link to the bugticket here in the thread.

The meaning of the word "stable" for users
www.limesurvey.org/forum/development/117...ord-stable-for-users

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1 year 7 months ago #166609 by evinsmj
Thanks for the post - I'm currently on 2.73.1.

Here is a link to the bug I reported:
bugs.limesurvey.org/view.php?id=13563

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1 year 7 months ago #166610 by Joffm
Hi,
yes it's obviously a bug, or somebody had an interesting idea, that it's a feature.

All values (1 - 6) are calculated on a base of 715 (563+152)
"No answer" and "not completed" are calculated on a base of 732 (563+152+17)

Now the sum of "percentages" is 101.83

I do not understand this.

IMO mean and standard deviation are not calculated in single punch questions, only in numerical questions.

Joffm


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1 year 7 months ago #166611 by evinsmj
Thanks, Joffm. I'm not sure why 1-6 are calculated on a base of 715. I would think that we'd only care about 1-6 based on those who actually saw the question, so it'd be 563+17 (580). I would also think that for "not completed or not displayed," we'd care about that percentage based on the total number of responses (732).

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1 year 7 months ago #166615 by Joffm
Well, it's an academic question.
What is the base?

All respondents with an additional row "not applicable"?
All respondents who saw the question?
All responses without "NA"?

Each client has different ideas.

Personally I'd always prefer the 580.

Joffm


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1 year 7 months ago #166622 by holch
As it is the 2.x branch I don't expect that there will be any bug fix. But let's see what they say on the bug tracker.

I'm not a LimeSurvey GmbH member. I answer at the LimeSurvey forum in my spare time. No support via private message.
Some helpful links: Manual (EN) | Question Types | Workarounds

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1 year 7 months ago #166623 by evinsmj
That's what I'm wondering also. I'm using their hosted platform though, so how can I get an update?

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1 year 7 months ago - 1 year 7 months ago #166629 by holch
If you are on Limesurvey Pro, please contact them directly on this website by going to "Contact" "Support" in the top right corner and open a ticket.

I'm not a LimeSurvey GmbH member. I answer at the LimeSurvey forum in my spare time. No support via private message.
Some helpful links: Manual (EN) | Question Types | Workarounds
Last edit: 1 year 7 months ago by holch.

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