public function has_actual_responses() {
        $actualresponses = $this->get_responses();
        if (count($actualresponses) > 1) {
            return true;
        } else if (count($actualresponses) === 1) {
            $singleactualresponse = reset($actualresponses);
            return (string)$singleactualresponse !== (string)$this->modelresponse;
        }
        return false;
    }