Data Collection and Privacy: Gathering user feedback on a new mobile app's usability can be challenging as users might be hesitant to share personal data for research purposes.
Small Sample Sizes and Recruitment: When studying the UX of a specialized medical device, finding enough participants with specific medical conditions becomes difficult, potentially limiting the study's scope.
Subjectivity and Bias: Assessing user emotions during an online shopping experience might vary among researchers, leading to potential bias in interpreting the collected data.
Measuring Emotions and Affective Responses: Trying to quantify user excitement or frustration while testing a video game's user interface can be challenging since emotions are complex and subjective.
Time and Resource Constraints: In a fast-paced product development environment, UX researchers may have limited time to conduct comprehensive user testing due to tight project timelines.
Iterative Design and Feedback Loops: Incorporating user feedback on an e-commerce website's design might require continuous iterations and coordination with development teams to implement changes.
Interdisciplinary Collaboration: Collaborating with software developers, designers, and marketing experts on a new social media platform can lead to communication challenges due to different professional backgrounds and terminologies.
Changing Technology Landscape: Researching the UX of a novel wearable device may require constant adaptation as the technology evolves and new features are introduced.
Further reading: "The major problem with User Experience Research | by Malgorzata Piernik | UX Planet" https://uxplanet.org/the-major-problem-with-user-experience-research-72f0b63716b0