<div dir="ltr"><div><div>Hi,<br></div><div><br>I had a student who claims he submitted an answer and didn't get credit for it.  This happened during a quiz so he didn't get the problem status, or a receipt, at the time of the submission.  In looking through the activity file I see something that I don't understand and was wondering if it was somehow related.  <br><br></div>The problem has 4 parts.  The 2nd part is a radiobuttonresponse and it is the one that the student claims to have answered.  In the activity log excerpt below, the 2nd part is HWVAL_14.<br><br>The thing that I don't understand is that HWVAL_14 doesn't show up in the POST on line 469 for the 1st part like the other parts do.  Then it shows up on line 468 with a value.  Line 468 is a POST for the 3rd part as indicated by the submission in the CSTORE on line 467.  Then on line 465, the POST for the 4th part, HWVAL_14 is missing again.<br><br></div>Looking at the issue of not getting credit for the submission, did he click on a radio button but not the submit button for that part (the 2nd part).  Then when he submitted his answer for the 3rd part, the 2nd part POST'ed too but lon-capa didn't grade it since the submit was not for the 3rd part.  That seems reasonable.<br><br>Is there an explanation for the line HWVAL_14 appearing and disappearing?  I thought maybe the activity log might be corrupt but grading indicates "<span class="m_5208176028677779386gmail-LC_warning">Nothing submitted - no attempts.</span>"<br><div><div><br></div>Are these 2 things related?<br><br></div><div><div>ACTIVITY LOG:<br><br>465     <span class="m_5208176028677779386gmail-LC_nobreak">Question 2</span><span class="m_5208176028677779386gmail-LC_nobreak">  2016-10-06 20:23:46  </span>POST<table><tbody><tr><td align="right">HWVAL_12</td><td>=</td><td align="left">.0045 M</td></tr><tr><td align="right">HWVAL_16</td><td>=</td><td align="left">26.56 g</td></tr><tr><td align="right">HWVAL_18</td><td>=</td><td align="left">.282 L</td></tr><tr><td align="right">submitted</td><td>=</td><td align="left">part_17</td></tr><tr><td align="right">symb</td><td>=</td><td align="left">uploaded/binghamton/<wbr>7i6759115966957b9binghamtonl1/<wbr>default_<wbr>141406948640900531475249776.<wbr>sequence___32___sfu/batchelo/<wbr>chem111/problems/lecture/set7/<wbr>M.mass.vol.relations.problem</td></tr></tbody></table>
<br>466    <span class="m_5208176028677779386gmail-LC_nobreak">Question 2  </span><span class="m_5208176028677779386gmail-LC_nobreak">2016-10-06 20:23:46</span>  CSTORE<table><tbody><tr><td align="right">host</td><td>=</td><td align="left">binghamtona2</td></tr><tr><td align="right">ip</td><td>=</td><td align="left">149.125.81.232</td></tr><tr><td align="right">resource.17.18.answername</td><td>=</td><td align="left">INTERNAL</td></tr><tr><td align="right">resource.17.18.awarddetail</td><td>=</td><td align="left">APPROX_ANS</td></tr><tr><td align="right">resource.17.18.awardmsg</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">resource.17.18.submission</td><td>=</td><td align="left">.282 L</td></tr><tr><td align="right">resource.17.award</td><td>=</td><td align="left">APPROX_ANS</td></tr><tr><td align="right">resource.17.awarded</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.17.awardmsg</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">resource.17.duedate</td><td>=</td><td align="left">1475803800</td></tr><tr><td align="right">resource.17.hinttries</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.17.maxtries</td><td>=</td><td align="left">3</td></tr><tr><td align="right">resource.17.rndseed</td><td>=</td><td align="left">644052659:1049734531</td></tr><tr><td align="right">resource.17.solved</td><td>=</td><td align="left">correct_by_student</td></tr><tr><td align="right">resource.17.tries</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.17.type</td><td>=</td><td align="left">problem</td></tr><tr><td align="right">resource.17.version</td><td>=</td><td align="left"><br></td></tr></tbody></table>
<br>467    <span class="m_5208176028677779386gmail-LC_nobreak">Question 2  </span><span class="m_5208176028677779386gmail-LC_nobreak">2016-10-06 20:21:05  </span>CSTORE<table><tbody><tr><td align="right">host</td><td>=</td><td align="left">binghamtona2</td></tr><tr><td align="right">ip</td><td>=</td><td align="left">149.125.81.232</td></tr><tr><td align="right">resource.15.16.answername</td><td>=</td><td align="left">INTERNAL</td></tr><tr><td align="right">resource.15.16.awarddetail</td><td>=</td><td align="left">APPROX_ANS</td></tr><tr><td align="right">resource.15.16.awardmsg</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">resource.15.16.submission</td><td>=</td><td align="left">26.56 g</td></tr><tr><td align="right">resource.15.award</td><td>=</td><td align="left">APPROX_ANS</td></tr><tr><td align="right">resource.15.awarded</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.15.awardmsg</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">resource.15.duedate</td><td>=</td><td align="left">1475803800</td></tr><tr><td align="right">resource.15.hinttries</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.15.maxtries</td><td>=</td><td align="left">3</td></tr><tr><td align="right">resource.15.rndseed</td><td>=</td><td align="left">644052659:1049734531</td></tr><tr><td align="right">resource.15.solved</td><td>=</td><td align="left">correct_by_student</td></tr><tr><td align="right">resource.15.tries</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.15.type</td><td>=</td><td align="left">problem</td></tr><tr><td align="right">resource.15.version</td><td>=</td><td align="left"><br></td></tr></tbody></table>
<br>468 <span class="m_5208176028677779386gmail-LC_nobreak">Question 2  </span><span class="m_5208176028677779386gmail-LC_nobreak">2016-10-06 20:21:01  </span>POST<table><tbody><tr><td align="right">HWVAL_12</td><td>=</td><td align="left">.0045 M</td></tr><tr><td align="right">HWVAL_14</td><td>=</td><td align="left">0.593069306930693</td></tr><tr><td align="right">HWVAL_16</td><td>=</td><td align="left">26.56 g</td></tr><tr><td align="right">HWVAL_18</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">submitted</td><td>=</td><td align="left">part_15</td></tr><tr><td align="right">symb</td><td>=</td><td align="left">uploaded/binghamton/<wbr>7i6759115966957b9binghamtonl1/<wbr>default_<wbr>141406948640900531475249776.<wbr>sequence___32___sfu/batchelo/<wbr>chem111/problems/lecture/set7/<wbr>M.mass.vol.relations.problem</td></tr></tbody></table>
<br>469  <span class="m_5208176028677779386gmail-LC_nobreak">Question 2  </span><span class="m_5208176028677779386gmail-LC_nobreak">2016-10-06 20:16:47  </span>POST<table><tbody><tr><td align="right">HWVAL_12</td><td>=</td><td align="left">.0045 M</td></tr><tr><td align="right">HWVAL_16</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">HWVAL_18</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">submitted</td><td>=</td><td align="left">part_11</td></tr><tr><td align="right">symb</td><td>=</td><td align="left">uploaded/binghamton/<wbr>7i6759115966957b9binghamtonl1/<wbr>default_<wbr>141406948640900531475249776.<wbr>sequence___32___sfu/batchelo/<wbr>chem111/problems/lecture/set7/<wbr>M.mass.vol.relations.problem</td></tr></tbody></table><br>470 <span class="m_5208176028677779386gmail-LC_nobreak">Question 2   </span><span class="m_5208176028677779386gmail-LC_nobreak">2016-10-06 20:16:47</span>  CSTORE<table><tbody><tr><td align="right">host</td><td>=</td><td align="left">binghamtona2</td></tr><tr><td align="right">ip</td><td>=</td><td align="left">149.125.81.232</td></tr><tr><td align="right">resource.11.12.answername</td><td>=</td><td align="left">INTERNAL</td></tr><tr><td align="right">resource.11.12.awarddetail</td><td>=</td><td align="left">APPROX_ANS</td></tr><tr><td align="right">resource.11.12.awardmsg</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">resource.11.12.submission</td><td>=</td><td align="left">.0045 M</td></tr><tr><td align="right">resource.11.award</td><td>=</td><td align="left">APPROX_ANS</td></tr><tr><td align="right">resource.11.awarded</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.11.awardmsg</td><td>=</td><td align="left"><br></td></tr><tr><td align="right">resource.11.duedate</td><td>=</td><td align="left">1475803800</td></tr><tr><td align="right">resource.11.hinttries</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.11.maxtries</td><td>=</td><td align="left">3</td></tr><tr><td align="right">resource.11.rndseed</td><td>=</td><td align="left">644052659:1049734531</td></tr><tr><td align="right">resource.11.solved</td><td>=</td><td align="left">correct_by_student</td></tr><tr><td align="right">resource.11.tries</td><td>=</td><td align="left">1</td></tr><tr><td align="right">resource.11.type</td><td>=</td><td align="left">problem</td></tr><tr><td align="right">resource.11.version</td><td>=</td><td align="left"><br></td></tr></tbody></table>
<br>471    <span class="m_5208176028677779386gmail-LC_nobreak">Question 2  </span><span class="m_5208176028677779386gmail-LC_nobreak">2016-10-06 20:15:10</span>   POST<br>symb=uploaded/binghamton/<wbr>7i6759115966957b9binghamtonl1/<wbr>default_<wbr>141406948640900531475249776.<wbr>sequence___32___sfu/batchelo/<wbr>chem111/problems/lecture/set7/<wbr>M.mass.vol.relations.problem<br><br></div><div>Thanks,<br></div><div>Bob Gonzales<br></div></div></div>