- A concise review of the relevant literature that motivates the research question and a full description of the experimental aims and hypotheses. While we do not impose word limits, conciseness will be judged positively in the review process. Please note that following IPA, hypotheses cannot be changed. Theoretical rationale can only include addition of new literature that has come to light during the data collection process, but cannot change the hypotheses. All changes should be clearly marked for ease of review.