public function get_best_attempt( $quiz_id = null, $deprecated = null ) {

		$attempts = $this->get_attempts_by_quiz(
			$quiz_id,
			array(
				'per_page' => 1,
				'sort'     => array(
					'grade'       => 'DESC',
					'update_date' => 'DESC',
					'id'          => 'DESC',
				),
				'status'   => array( 'pass', 'fail' ),
			)
		);

		if ( $attempts ) {
			return $attempts[0];
		}

		return false;

	}