Complex sentence: The secret ballot is a voting method in which a voter's choices in an election or a referendum are secret and anonymous, to ensure the voter records a sincere choice by forestalling attempts to influence the voter by intimidation or bribery.
Split into simpler sentences: The secret ballot is a voting method in which a voter's choices in an election or a referendum are both secret and anonymous. The key aim is to ensure the voter records a sincere choice by forestalling attempts to influence the voter by intimidation or bribery.