--- C:/Users/Pratt/workspace/ou-moodle-31/mod/quiz/report/statistics/Copy of qstats.php	Tue Sep 23 17:50:59 2008
+++ C:/Users/Pratt/workspace/ou-moodle-31/mod/quiz/report/statistics/qstats.php	Tue Sep 23 17:51:24 2008
@@ -39,6 +39,7 @@
     }
     function get_records($quizid, $currentgroup, $groupstudents, $allattempts){
         global $CFG;
+        $questionlist = join(array_keys($this->questions), ',');
         list($fromqa, $whereqa) = quiz_report_attempts_sql($quizid, $currentgroup, $groupstudents, $allattempts);
         $sql = 'SELECT qs.id, ' .
             'qs.question, ' .
@@ -51,6 +52,7 @@
             "{$CFG->prefix}question_states qs, ".
             $fromqa.' '.
             'WHERE ' .$whereqa.
+            'AND qs.question IN ('.$questionlist.') '.
             'AND qns.attemptid = qa.uniqueid '.
             'AND qns.newgraded = qs.id';
         $this->states = get_records_sql($sql);