Permalink
Browse files

*** empty log message ***

  • Loading branch information...
1 parent 32da903 commit 036162ea9ab219817a255a5e0df8b797cd4d4b34 trobb committed Nov 25, 2003
Showing with 154 additions and 21 deletions.
  1. +1 −0 lang/en/quiz.php
  2. +153 −21 mod/quiz/report/fullstat/report.php
View
@@ -50,6 +50,7 @@
$string['defaultinfo'] = 'The default category for questions.';
$string['deletequestioncheck'] = 'Are you absolutely sure you want to delete \'$a\'?';
$string['description'] = 'Description';
+$string['discrimination'] = "Discrim. Index";
$string['eachattemptbuildsonthelast'] = 'Each attempt builds on the last';
$string['editcategories'] = 'Edit categories';
$string['editingdescription'] = 'Editing a Description';
@@ -1,6 +1,8 @@
<?PHP // $Id: report.php,
// created from the above 2003/11/20 by Tom Robb tom@robb.net
-// Version 2.0
+// Version 2.2 Modified 2003/11/25 pm
+// $showtext added to toggle display of full text of M/C questions
+// Discrimination Index figures added
/// This report shows the specific responses made by each student for each question.
@@ -22,22 +24,26 @@ function display($quiz, $cm, $course) { /// This function just displays the
$string['listitems'] = "Listing of Items in This Quiz";
$string['noresponse'] = "No Response";
$string['percentcorrect'] = "Percent Correct";
-$string['question'] = "Question";
+$string['discrimination'] = "Discrim. Index";
$string[''] = "";
*/
$strindivresp = get_string("indivresp", "quiz");
$strname = get_string("name", "quiz");
- $strgrade = get_string("grade");
+ $strgrade = get_string("grade", "quiz");
$stritemanal = get_string("itemanal", "quiz");
$strcorrresp = get_string("corrresp", "quiz");
$strnoresponse = get_string("noresponse", "quiz");
$strpercentcorrect = get_string("percentcorrect", "quiz");
$strlistitems = get_string("listitems", "quiz");
$strquestion = get_string("question", "quiz");
+ $strwithsummary = get_string("withsummary", "quiz");
+ $strdiscrimination = get_string("discrimination", "quiz");
// $str = get_string("qr", "quiz");
- //Get the question ids
+ //$showtext causes M/C text to whos in top table. This could be made into a user toggle if we want to complicate matters
+ $showtext = 1;
+ $containsMCTF = 0; //used to toggle title in final listing
$thisquizid = $quiz->id;
$qs_in_order =qr_getqs($thisquizid);
$qcount = 0;
@@ -51,6 +57,7 @@ function display($quiz, $cm, $course) { /// This function just displays the
$quests[$qid]["qtype"] = $thiskey;
$quests[$qid]["qtext"] = $question_data[$thiskey]->questiontext;
}
+ if($quests[$qid]['qtype'] == 3 or $quests[$qid]['qtype'] == 2){ $containsMCTF = 1;}
if($quests[$qid]['qtype'] == 5){
//for MATCH items we need to know how many items there are
$thismatch = get_record("quiz_match","question","$qid");
@@ -169,6 +176,61 @@ function display($quiz, $cm, $course) { /// This function just displays the
print("<h3>Data Tally</h3>");
print_object($data_tally);
}
+
+ //Create a list of all attempts with their scores for item analysis
+ //Also create $data2 that has attempt id as key
+ foreach ($data_tally as $thistally){
+ foreach($thistally as $this_aid=>$thisattempt){
+ //this is the attempt id and the score
+ $data2[$this_aid] = $thisattempt;
+ $scores[$this_aid] = $thisattempt[1];
+ }
+ }
+ arsort($scores);
+ //now go through scores from top to bottom and from $data2 accumulate no correct for top 1/3 and bottom 1/3 of scorers
+ $totscores = count($scores);
+ $numb_to_analyze = floor($totscores/3);
+ $skipval = $numb_to_analyze + 1;
+ $first_lowval = $totscores - $numb_to_analyze +1;
+ $count_scores = 0;
+ $tempscores = array();
+ $top_scores = array_pad($tempscores,$table_colcount+1,0);
+ $bott_scores = array_pad($tempscores,$table_colcount+1,0);
+ foreach($scores as $aid=>$score){
+ $count_scores++;
+ if ($count_scores < $skipval){
+ //array items 0 & 1 contain user name & tot score, not item data
+ $i = 2;
+ while($data2[$aid][$i]){
+ //let this array start from 1
+ if ($data2[$aid][$i]['score'] == 1){
+ $top_scores[$i-1]++;
+ }
+ $i++;
+ }
+ } elseif ($count_scores >= $first_lowval) {
+ $i = 2;
+ while($data2[$aid][$i]){
+ //let this array start from 1
+ if ($data2[$aid][$i]['score'] == 1){
+ $bott_scores[$i-1]++;
+ }
+ $i++;
+ }
+ } else {
+ continue;
+ }
+ }
+
+ if($debug and !$download){
+ print("<h3>Scores</h3>");
+ print_object($scores);
+ print("<h3>Top Scores</h3>");
+ print_object($top_scores);
+ print("<h3>Bottom Scores</h3>");
+ print_object($bott_scores);
+ }
+
//Create here an array with the response analysis data for use with both screen display & Excel
// 2 dimensional array has as many cells across as items + title, as many down as $max_choices
// plus one row [0] for correct items
@@ -418,13 +480,32 @@ function display($quiz, $cm, $course) { /// This function just displays the
$row = $row+2;
}
- //Finally output the total percent correct
+ //Output the total percent correct
$row++;
$myxls->write_string($row,1,"Percent Correct:",$formatbrt);
for ($i = 1; $i<= $table_colcount;$i++){
$myxls->write_string($row,$i,$pct_correct[$i],$formatbc);
}
+ //Finally display the itemanalysis
+ $row++;
+ $myxls->write_string($row,0,"Discrimination Index",$formatbc);
+ $myxls->write_string($row+1,0,"Top third",$formatbc);
+ $myxls->write_string($row+2,0,"Bottom third",$formatbc);
+ for ($i = 1; $i<= $table_colcount;$i++){
+ if($bott_scores[$i] > 0) {
+ $val = round(($top_scores[$i]/$bott_scores[$i]),1);
+ } elseif ($top_scores[$i] ){
+ $val = 10;
+ } else {
+ $val = 0;
+ }
+ $myxls->write_string($row,$i,$val,$formatbc);
+ $myxls->write_string($row+1,$i,$top_scores[$i],$formatbc);
+ $myxls->write_string($row+2,$i,$bott_scores[$i],$formatbc);
+ }
+
+
//Print the questions with responses on a new worksheet
$myxls = &$workbook->add_worksheet('Questions and Responses');
$sheettitle = "Questions and Responses";
@@ -570,19 +651,27 @@ function display($quiz, $cm, $course) { /// This function just displays the
if ($thisitem['score'] == 1) {$thiscolor = "blue";}
if(!$thisitem['data'][1]){$thisitem['data'][1]="($strnoresponse)";}
print("<td align=center><font size=-2>{$thisitem['data'][0]}<br><font color='$thiscolor'>{$thisitem['data'][1]}</font></font></td>");
+ } elseif ($thisitem['qtype'] == 3) {
+ if ($showtext) {
+ print("<td align=center><font color='$thiscolor' size=-2>&nbsp;&nbsp;{$thisitem['data']}&nbsp;&nbsp;</font></td>");
+ } else {
+ print("<td align=center><font color='$thiscolor'>&nbsp;&nbsp;{$thisitem['data']}&nbsp;&nbsp;</font></td>");
+ }
} else {
print("<td align=center><font color='$thiscolor'>&nbsp;&nbsp;{$thisitem['data']}&nbsp;&nbsp;</font></td>");
}
}
}
print("</tr>\n");
}
-
+ print("</table><p>\n");
+
if($debug and !$download){
print("<h3>Qtally</h3>");
print_object($qtally);
}
//print tally of how many selected each choice
+ print ("<p><table width=95% border=1 align=center cellpadding=2 cellspacing=0>\n");
print("<tr><th colspan=$totcolcount>$stritemanal</th></tr>");
qr_print_headers($data_tally,"Item","&nbsp;");
//display row with correct answers
@@ -611,29 +700,66 @@ function display($quiz, $cm, $course) { /// This function just displays the
}
}
print("</tr>\n");
- //Finally display the total percent correct
+ //Display the total percent correct
print("<tr valign=top><th align=right colspan=2>$strpercentcorrect:</th>");
for ($i = 0; $i< $table_colcount;$i++){
print ("<th>{$pct_correct[$i]}</th> ");
}
print("</tr>\n");
+ //Finally display the itemanalysis
+ print("<tr valign=top valign='middle'><th align=right colspan=2>");
+ helpbutton("discrimination", "", "quiz");
+ print(" $strdiscrimination:</th>");
+ for ($i = 1; $i<= $table_colcount;$i++){
+ if($bott_scores[$i] > 0) {
+ $val = round(($top_scores[$i]/$bott_scores[$i]),1);
+ } elseif ($top_scores[$i] ){
+ $val = 10;
+ } else {
+ $val = 0;
+ }
+ print ("<th valign='middle'><font size=-1>$val ({$top_scores[$i]}/{$bott_scores[$i]})</font></th> ");
+ }
+ print("</tr>\n");
print("</table>\n");
//Now printout the questions (and M/C answers if $containsMC
print ("<p><table width=95% border=1 align=center cellpadding=2 cellspacing=0>\n");
- print("<tr><th colspan=3>QUIZ: $quiz->name&nbsp;&nbsp; -- &nbsp;&nbsp;$strlistitems</th></tr>\n");
+ if ($containsMCTF){$ws = " ". $strwithsummary;} else {$ws = "";}
+ print("<tr><th colspan=3>QUIZ: $quiz->name&nbsp;&nbsp; -- &nbsp;&nbsp;$strlistitems$ws</th></tr>\n");
$qcount = 0;
+ $itemcount = 0; //needed since matching Qs adds additional columns of data in $analysis
foreach ($qs_in_order as $qid){
$qcount++;
- print("<tr valign=top><th>Q-$qcount</th><td colspan=2>{$quests[$qid]['qtext']}</td></tr>\n");
+ if ($quests[$qid]['qtype']==5) { $itemcount = $itemcount + $match_number[$qid];} else {$itemcount++;}
+ print("<tr valign=top><th width='10%'>Q-$qcount</th><td colspan=2>{$quests[$qid]['qtext']}</td></tr>\n");
if($quests[$qid]['qtype']==3){
$nowchoices = $quests[$qid]['choice'];
foreach($nowchoices as $thischoice){
- print("<tr valign=top><td>&nbsp;</td>");
- print("<td width='5%' align=center><b>A-{$thischoice['choiceno']}</b></td><td>{$thischoice['answer']}</td></tr>\n");
+ $cno = $thischoice['choiceno'];
+ $nowstat = $analysis[$cno][$itemcount];
+ $pct_cor = qr_make_pct($nowstat,$total_user_count);
+ print("<tr valign=top><td align='right' width='10%'>$nowstat ($pct_cor)&nbsp;</td>");
+ print("<td width='5%' align='center'><b>A-$cno</b></td><td>{$thischoice['answer']}</td></tr>\n");
}
}
+ if($quests[$qid]['qtype']==2){
+ //"True" responses
+ $nowstat = $analysis[1][$qcount];
+ $colpos = strpos($nowstat,":");
+ $nowresp = substr($nowstat,$colpos+1);
+ $pct_cor = qr_make_pct($nowresp,$total_user_count);
+ print("<tr valign=top><td align='right'>$nowresp ($pct_cor)&nbsp;</td>");
+ print("<td colspan=2 align=left>True</td></tr>\n");
+ //"False" responses
+ $nowstat = $analysis[2][$qcount];
+ $colpos = strpos($nowstat,":");
+ $nowresp = substr($nowstat,$colpos+1);
+ $pct_cor = qr_make_pct($nowresp,$total_user_count);
+ print("<tr valign=top><td align='right'>$nowresp ($pct_cor)&nbsp;</td>");
+ print("<td colspan=2 align=left>False</td></tr>\n");
+ }
}
print("</table>\n");
@@ -756,29 +882,29 @@ function qr_make_footers(){
if($quests[$qid]['qtype'] == 5) {
foreach ($qtally[$qid] as $thisitem){
$this_correct = $thisitem['correct'];
- $footers[] = qr_make_pct($this_correct);
+ $footers[] = qr_make_pct($this_correct,$total_user_count);
}
} else {
$this_correct = $qtally[$qid]['correct'];
- $footers[] = qr_make_pct($this_correct);
+ $footers[] = qr_make_pct($this_correct,$total_user_count);
}
}
return $footers;
}
-function qr_make_pct($this_correct){
+function qr_make_pct($this_correct,$totusers){
global $qs_in_order,$qtally,$quests,$total_user_count;
- if($this_correct>0){
- $pct_cor =round(($this_correct/$total_user_count)*100,1);
+ if($this_correct>0 and $totusers > 0){
+ $pct_cor =round((($this_correct/$totusers)*100),1);
} else {
- $pct_cor = 0;
+ $pct_cor = 0;
}
return $pct_cor ."%";
}
function qr_answer_lookup($qid,$thisanswer){
//For each type of question, this needs to determine answer string to report and whether right or wrong
- global $quests,$qtally,$max_choices,$thismin,$thismax;
+ global $quests,$qtally,$max_choices,$thismin,$thismax,$showtext;
$thistype = $quests[$qid]['qtype'];
$returndata['data'] = "--";
$returndata['score'] = 0;
@@ -804,8 +930,14 @@ function qr_answer_lookup($qid,$thisanswer){
}
break;
case 3: //MULTICHOICE
- $returndata['data'] = $quests[$qid]['choice'][$thisanswer]['choiceno'];
- if($max_choices < $returndata['data']) {$max_choices = $returndata['data'];}
+ $thischoiceno = $quests[$qid]['choice'][$thisanswer]['choiceno'];
+ if ($showtext){
+ $returndata['data'] = $quests[$qid]['choice'][$thisanswer]['answer'];
+ } else {
+ $returndata['data'] = $thischoiceno;
+ }
+// if($max_choices < $returndata['data']) {$max_choices = $returndata['data'];}
+ if ($max_choices < $thischoiceno) {$max_choices = $thischoiceno;}
$qtally[$qid][$quests[$qid]['choice'][$thisanswer]['choiceno']]++;
if (strtolower($quests[$qid]['correct'])==strtolower($quests[$qid]['choice'][$thisanswer]['choiceno'])){
$returndata['score'] = 1;
@@ -877,4 +1009,4 @@ function qr_match_table($resplist){
$tbl = $tbl . "</tr>\n</table>\n";
return $tbl;
}
-?>
+?>

0 comments on commit 036162e

Please sign in to comment.