public function is_prerequisite_complete( $type = 'course', $student_id = null ) {

		if ( ! $student_id ) {
			$student_id = get_current_user_id();
		}

		// No user or no prereqs so no reason to proceed.
		if ( ! $student_id || ! $this->has_prerequisite( $type ) ) {
			return false;
		}

		$prereq_id = $this->get_prerequisite_id( $type );

		// No prereq id of this type, no need to proceed.
		if ( ! $prereq_id ) {
			return false;
		}

		// Setup student.
		$student = new LLMS_Student( $student_id );

		return $student->is_complete( $prereq_id, $type );
	}