Answer the following questions down below, 300+ words for each. (iii.) This sem

Answer the following questions down below, 300+ words for each.
(iii.) This semester we have discussed issues regarding research ethics. Discuss why and how ABAB designs present a potential violation of research ethics.
(iv). What does it mean to suggest that developmental studies are confounded? Provide an example for a longitudinal study. Provide an example for a cross-sectional)?
(v). Describe an example of your own of an experiment incorporating a balanced placebo design. (Note: It is not enough to simply use the in-lecture example looking at the expectancy effects of alcohol by merely substituting with another psychoactive substance; that’s the same design, a different psychoactive substance. This is not allowable for this exam).
INSTRUCTIONS:
1) No quotes…You cannot use quotes from other authors to fill in space on the exam. Typically, in formal APA writing, psychologists do not quote. Paraphrasing–summarizing the main points of other people’s work and explaining how it applies to your understanding of the material and your arguments–is acceptable. However…
2) Avoid “patchwork plagiarism”. This is where one simply copies, cuts, and pastes from various online resources to string together a new sentence or paragraph. Your writing must be uniquely your own. Additionally, while a number of the synchronous participants have contributed to a common Google Doc during our exam review, please do not merely copy and paste from their work. Please draw upon their writing as a starting point, but also know 1) your final answer must be your own, and 2) their collective work may not be complete.
3) “Cut to the chase”. Do not spend too much time or writing space restating the question as part of your answer.