--- questiontype.php.old        2008-03-05 13:30:21.000000000 +0100
+++ questiontype.php    2008-03-05 13:30:50.000000000 +0100
@@ -259,7 +259,8 @@
             $this->get_tolerance_interval($answer);
             return ($answer->min <= $response && $answer->max >= $response);
         } else {
-            return ($response == $answer->answer);
+            return ($response === $answer->answer);
+            //return ($response == $answer->answer);
         }
     }