[ARCHIVED] not displaying answers in quiz statistics

[Liv_Kroona]

The students who take the quiz can see both the questions and all the answer alternatives.

The issue is that in "Quiz statistics" some of the answers are empty.

[Tasha_Biesinger]

We recently had a report of this happen and Instructure Support let us know that this occurs when the text of the answers is changed after students have already started taking the quiz. The Stats page can't accurately display the answer options because the text for each possible answer was one thing for early quiz takers and something else for later quiz takers. You'll have to rely on SpeedGrader and the Student Analysis CSV export for details on what the answer options were at the time that each student took their quiz.

[James]

It can also happen when there are images for the content.

Math teachers used to have this problem when we would have multiple choice questions where every response was an equation object. Although math is now supported everywhere, I guess they meant everywhere but the quiz statistics. The formatting is stripped as well, so u² becomes u2. The LaTeX is stripped and just the text is displayed (better than before, when nothing was displayed).

Basically, they are displaying the text for the responses and if there is no text, then it shows up as missing.

[Tasha_Biesinger]

Well - turns out that the simple act of using the pencil icon to open the larger field with the RCE to enter an answer will also cause answers to not appear in Quiz Statistics. From Instructure Support:

In this case, the teacher did click the pencil icon for the answer which opens the RCE which does appear to have caused this behavior. If they do not use the pencil icon, they will not see this behavior. 

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Their explanation said briefly that without using the pencil icon the answer was a 'plain text' answer and will appear in Quiz Statistics. Using the pencil icon the answer becomes an 'html' answer and html answers will not display in Quiz Statistics.

I'm not hopeful that this will get fixed since they are working toward pushing folks to New Quizzes in the next year or so.

[James]

@Tasha_Biesinger 

Merely having an HTML answer is not sufficient (by itself) to keep it out of the quiz statistics.

Here's a multiple answers question where the responses used the HTML editor to get the subscripts.

And here is how they show up in the Quiz Statistics.

I would look at what was in the answer rather than just the fact that it is HTML. Any HTML is showing up for me as plaintext, but any images are not showing up.

For example, one answer is <p>x₁</p>. If you take apply the textContent property to that, you get x1.

Something has changed, though. When I last looked at this, the quiz responses were blank if all that I had as an image. Now, it's saying "No answer text provided."

Worse, for some image that are equations, I'm getting the HTML of the image. This is what it shows in the Quiz Statistics for one of my multiple choice questions.

<img class="equation_image" title="\begin{array}{rrrrr}5x+3y\ge30\\x+2y\le10\end{array}" src="https://richland.instructure.com/equation_images/%255Cbegin%257Barray%257D%257Brrrrr%257D5x%2526%252B%25263y%2526%255Cge%252630%255C%255Cx%2526%252B%25262y%2526%255Cle%252610%255Cend%257Barray%257D" alt="LaTeX: \begin{array}{rrrrr}5x+3y\ge30\\x+2y\le10\end{array}" data-equation-content="\begin{array}{rrrrr}5x+3y\ge30\\x+2y\le10\end{array}" data-mathml='math xmlns="http://www.w3.org/1998/Math/MathML" mtable columnalign="right right right right right" rowspacing="4pt" columnspacing="1em" mtr mtd mn5/mn mix/mi /mtd mtd mo+/mo /mtd mtd mn3/mn miy/mi /mtd mtd mo#x2265;!-- ≥ --/mo /mtd mtd mn30/mn /mtd /mtr mtr mtd mix/mi /mtd mtd mo+/mo /mtd mtd mn2/mn miy/mi /mtd mtd mo#x2264;!-- ≤ --/mo /mtd mtd mn10/mn /mtd /mtr /mtable /math'>

For others, I'm just getting the "No answer text provided." message.