# Price Sensitive Measurement.

10 months 3 weeks ago #168006
Would like to know how I can set the logic for below question.

Let’s consider the price of a bottle of 500ml of A product PRICE RANGE OF \$ 12.00 – \$ 24.00]

a) At what price would you consider this product to be expensive but still worth to buy? (SA)
b) At what price would you consider this product to be so expensive and you would not be willing to spend that kind of money on it? (SA)
c) At what price you consider this product to be cheap? (SA)
d) At what price would you consider this product to be so cheap, that you would think it cannot be of good quality? (SA)

Validate requirement:
Answer Code select in a > b > c> d.
Mean the answer in d cannot more expensive than c, c cannot more expensive than b, and b cannot more expensive than a

LimeSurvey Partners
10 months 3 weeks ago #168008 by Joffm
Replied by Joffm on topic Price Sensitive Measurement.
Hi,
of course you can do this by simple question validation.
How are you going to implement the question?
Your chart looks like a matrix by columns.
So something like this:
(self.sq_SQ001.NAOK gt self.sq_SQ002.NAOK) and
(self.sq_SQ002.NAOK gt self.sq_SQ003.NAOK) and
(self.sq_SQ003.NAOK gt self.sq_SQ004.NAOK)

And of course b can be - and should be - greater than a. These columns have to be switched.

https://manual.limesurvey.org/Workarounds:_Manipulating_a_survey_at_runtime_using_Javascript#Van_Westendorp_Pricing_Sliders

Best regards
Joffm

Pleas always tell us at least which LS version you are using.

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10 months 3 weeks ago #168025
Thanks Joffm;

I plan to use separate single answer question to hide the answer

for example:

If Qa answer is \$21.00 (Qa_19=="Y")

answer in Qb answer 1-18 is visible, Qb_18 onward will be hidden
if Qb answer is \$ 20.00 (Qb_17=="Y")

answer in Qc answer 1-16 is visible, Qc_16 onward will be hidden
if Qc answer is \$ 15.00 (Qb_7=="Y")

answer in Qd answer 1-6 is visible, Qd_6 onward will be hidden
if Qd answer is \$ 13.00 (Qb_3=="Y")

Possible to do this way? or array will be better option?

10 months 3 weeks ago #168026 by Joffm
Replied by Joffm on topic Price Sensitive Measurement.
Hi,
again you forgot to tell us your LS version.

Out of the box you can't filter single on single.
You have to create a hidden multiple question between two singles and set answers by equations.
Then you can use array filter in the next single.
Desscribed several times, e.g. here:

Maybe easier to use multiple questions with "max answers=1"

As you write (Qa_19=="Y"); this is syntax of multiple questions.
For single it has to be: If Qa answer is \$21.00 (Qa==19)

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10 months 2 weeks ago #168039 by jelo
Replied by jelo on topic Price Sensitive Measurement.
The slider concept is the best way to get answers, without pissing respondents off

Second best is to use open textboxes without or with displayed limits (Sorry. Price has to be between xx and yy).

Never seen a matrix question for PSM. What is the concept behind that kind of layout?

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

10 months 2 weeks ago #168040 by tpartner
I agree that the sliders would be the best user experience. I will be developing a custom question for 3.x a soon as a few outstanding custom-question bugs are ironed out.

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

10 months 2 weeks ago #168047 by holch
Replied by holch on topic Price Sensitive Measurement.
We have done that before and it works quite well (but this was with another tool). Just the way sheonliaw describes it, but not as a matrix, but 4 different list type questions.

Advantage: Fixed price points/steps. The second question only gave options above the answer in the first question, etc.

Why did we do it? Client asked for exactly this layout (main reason), it was administered on tablets, where it is much easier to click a button rather than use a slider or even type a price. There is no doubt where the reasonable price points are.

I'm not a LimeSurvey GmbH member. I answer at the LimeSurvey forum in my spare time. No support via private message.

10 months 3 weeks ago #168076 by Joffm
Replied by Joffm on topic Price Sensitive Measurement.
Hi,
here I show you how you can achieve it.
And you have an example how to filter single on single.

And the sample survey

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Joffm

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