I have an assessment tool that uses two Array(F) questions.

One collects symptom data and has 47 questions. Uses a four-point answer option (0,1,2,3)

One collects performance data and has 8 questions. Uses a five-point answer option (1,2,3,4,5)

I have written summary equations that add up the number of symptoms for different subgroups within the 47 questions.

This works well and I can get a count of the number of symptoms for each subgroup which are endorsed at greater than or equal to (ge) 2 on the answeroptions. I can also get a count of the number of performance items that are rated (ge) 4 on the performance answeroptions.

The problem comes when I try to apply conditional logic to determining whether the combination of symptom count and performance count is sufficient to suggest a diagnosis.

The rules are pretty straightforward. e.g. for Inattentive ADD a possible diagnosis would be indicated by a symptom count (InnADDcount) (ge) 6 AND a performance count (PERFcount) ge 1.

I have made a Diagnostic Summary question of Equation type.

In the text box (not the equation box) I have put the following;

And this doesn't work.

It seems to process the logic OK. There are no warnings or indications that the syntax is wrong.

But, each summary evaluates to NO no matter what the count numbers are in symptoms and performance.

I am attaching the lss file for this survey.

The questions I have are;

(a) Is it reasonable to structure an equation question in this way, i.e. putting multiple equations mixed with header text into the one evaluation space? and, if so;
(b) is there something wrong with the conditional logic that I am using.

It seems pretty simple to me and I just can't see where I am going wrong.

p.s. I have experimented by just using one equation question for each diagnostic check and get the same result

Thanks for having a look. Your advice would be very welcome.

Unsure because didn't test but 90% chance it fix the issue : add .NAOK to the variables

www.limesurvey.org/manual/Expression_Manager#Usage_of_NAOK

I added NAOK to all of the variables in the Diagnostic summary.

It made no difference. Continues to evaluate everything to NO.

I tried adding .value and .valueNAOK.

Again no difference. The conditions continue to evaluate to NO regardless of the number of counts.

Thanks for the idea, though.

Check your survey logic : seems you have & nbsp inside the equation.

Hi,

Remove the text inside your equations
and there is a " " inside your first if-statement of your summary.
Diagnostic Likelihood Summary</u></span></p><p><strong>&nbsp;Inattentive ADD</strong>: {if(InnADDcount ge 6 and &nbsp;PERFcount ge 1, 'YES', 'NO')}


And you have to use "NAOK".
Reason: Your questions are not mandatory, and you calculate a "sum". Without NAOK the sum will not be calculated if one of the questions is not answered.

Joffm

This I get setting everything to "very often" and "poroblematic"



Problem:
In ADHDComp you have the equation
<p>{if(InnADDcount ge 6 and HypADDcount ge 6 and PERFcount ge 1, 'YES','NO')}</p>
BUT PERFCount is not calculated yet.

Thanks for that.

I had the answers as non-mandatory to make for quicker testing. So, I was just exploring the InnADD to start with. When it is deployed I will have both questions set to mandatory. I have reset both questions back to mandatory.

I went through and removed the "&nbsp;" from the first statement.

I also put in the NAOK.

The Summary equation now looks like this;

And I moved the ADHDComp to below the other equations.

I wasn't sure what you meant by

Remove the text inside your equations

. Did you just mean the Summ equation (Diagnostic Likelihood)? I can't see any text there. Or is it throughout the other equations too. I just can't see what text you mean

Would you mind uploading the lss with your modifications? I am pretty sure I can work it out if I can see what you've actually done.

I appreciate the help. It's ok if this is asking too much. I don't really need the summary. It just feels more complete with it :dry:

I talked about this:

<p>Conduct Disorder Screen: {sum(if(G02Q02_SQ27.value ge 2, 1, 0), if(G02Q02_SQ28.value ge 2, 1, 0),if(G02Q02_SQ29.value ge 2, 1, 0),if(G02Q02_SQ30.value ge 2, 1, 0), if(G02Q02_SQ31.value ge 2, 1, 0),if(G02Q02_SQ32.value ge 2, 1, 0),if(G02Q02_SQ33.value ge 2, 1, 0),if(G02Q02_SQ34.value ge 2, 1, 0), if(G02Q02_SQ35.value ge 2, 1, 0),if(G02Q02_SQ36.value ge 2, 1, 0), if(G02Q02_SQ37.value ge 2, 1, 0),if(G02Q02_SQ38.value ge 2, 1, 0), if(G02Q02_SQ39.value ge 2, 1, 0),if(G02Q02_SQ40.value ge 2, 1, 0))}</p>

And, I didn't change anything except removing the text and removing the &nbsp;

Joffm

The reason why you should remove this text is:

What you insert into the question text of this equation is stored.
So with this question text you store "Conduct Disorder Screen: 9"

Later you want to do more calculations with this value.

Of course your comparison "CDcount ge 3" will fail.

Joffm

So revise all your equation to remove all HTML. In the HypADDcount is still &nbsp;

Joffm wrote: So revise all your equation to remove all HTML. In the HypADDcount is still &nbsp;

Best is to use dedicated settings equation for the value without any string and text . And no HTML editor to add new lines etc ...

And use question text part to show to user.

You can even use this Conduct Disorder Screen: {self.NAOK}

Thanks to both Joffm and DenisChenu.

Your suggestions were helpful. The Summary stuff is now working.

You have also helped me to better understand the workflow and process for developing these types of calculations in surveys.

I am putting a lot of my clinical assessment tools onto my server and your advice has helped tremendously.

Cheers