Your question is Designing a Study for a Hypothesis. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Present a hypothetical research problem and describe how you would design a study to address it at Ipsos.
Choose a clearly defined research question and explain the target population, sampling and recruitment approach, measurement instrument, study design, sample-size and power considerations, analysis plan, and ethical safeguards. State the estimand, hypotheses, assumptions, likely sources of bias, and how you would communicate uncertainty to a client. The design should distinguish association from causal effect where relevant and explain how Ipsos quality controls would support valid inference.