usability engineering. answer the questions.

When conducting usability tests with users there is a point of diminishing returns'. At that point, an increase in participants does not significantly increase the number of new usability problems found in a system. True False Why do we need to consider ethics in Usability Engineering Research (UXR)? (Multiple answers possible) Studies are reviewed before they can be run. Ethics will be considered upon review and unethical projects will not be approved. We work with people and need to ensure their physical and psychological safety. Funding of studies depends on the ethicality of the research project. If a study is unethical, there will be repercussions such as loss of funding, losing our jobs, and possible legal issues. Including ethics in our studies makes the studies finding more valid. Which design processes are iterative? (Multiple answers possible) Test-Driven Development User-Centered Design UX Engineering Interaction Design Process Waterfall Design Thinking There is a plethora of design processes which are all extremely different from one another. True False What are some things you should consider when deciding which tools and methods to use in the context of UX Research? (Multiple answers possible) Technical implementation. Time constraints. Budget and financial constraints. Project needs and goals