Academic tone rules
1. Avoid 'I' and 'you' in research writing. Use third person: 'This study examined...', 'The data show...'
2. Use formal vocabulary: 'investigate' not 'look into', 'demonstrate' not 'show', 'numerous' not 'many'.
3. Hedge your claims: 'The results suggest that...' (not 'The results prove that...'). 'It is likely that...' (not 'It is certain that...').
4. Use passive voice when the agent is not the focus: 'The experiment was conducted' (not 'I conducted the experiment').
5. Define your terms early. Do not assume the reader knows what you mean.