/**
  * @param ilUserQuestionResult $result
  * @param string               $comperator
  * @param null|int				$index
  *
  * @return bool
  */
 public function checkResult($result, $comperator, $index = null)
 {
     $solutions = $result->getSolutions();
     $isTrue = false;
     foreach ($solutions as $solution) {
         $isTrue = $isTrue || $this->compare($comperator, $solution["key"], $solution["value"]);
     }
     return $isTrue;
 }