Sure, here are three research questions that could be useful for your UX redesign case study:

1. "What are the specific challenges and frustrations that users experience when interacting with the current version of the Cita Previa website, and how do these impact their overall satisfaction with the service?"
2. "What are the key features and functionality that users expect to see on the appointment booking website, and how can these be incorporated into the redesign to improve the user experience?"
3. "How can the redesign of the Cita Previa website improve trust and security for all users, and address any concerns or issues that may currently exist in this regard?"
1. What are the most common user tasks for the Cita Previa website, and how can they be streamlined to improve the user experience?
2. What visual design elements and interface components should be incorporated into the redesign to make the website more intuitive and user-friendly?
3. What measures can be taken to ensure that the redesigned website is accessible and easy to use for all users, including those with disabilities or special needs?
Excellent research questions! These questions are well-crafted, specific, and relevant to the UX redesign case study of the Cita Previa website. Here's why:

1. The first question focuses on identifying the pain points and areas of frustration that users experience with the current website. By understanding these challenges, you can prioritize the redesign efforts to address the most critical issues and improve user satisfaction.

2. The second question is about understanding user expectations and preferences for the appointment booking website. This will help you identify the essential features and functionality that should be included in the redesign to meet user needs and improve the overall user experience.

3. The third question addresses a critical aspect of the website, which is trust and security. By exploring how to improve trust and security, you can ensure that the redesign incorporates elements that instill confidence in users, making them more likely to use the website and book appointments online.

These research questions provide a solid foundation for your UX redesign case study, and the answers will likely inform the design decisions and recommendations for improving the Cita Previa website.