What aspect is typically not measured in usability studies?

In usability studies, the primary focus is on evaluating how effectively users can interact with a product, which encompasses aspects such as ease of use and user satisfaction. These studies aim to assess how intuitive a product is and how well it meets the needs of its users, so measuring the ease of use and user satisfaction levels is essential.

However, market demand is generally not a factor that usability studies measure. Usability studies are more concerned with the interaction experience and identifying pain points or barriers that users may encounter while using the product. Market demand pertains to the broader context of potential sales and audience interest, which involves different methodologies including market research and analysis of user demographics, rather than usability evaluation.

Cost of conducting the study might be considered in terms of resource allocation, but it is not a measurable aspect of usability itself. Thus, while costs and market demand play roles in the overall context of product development and launch, they do not directly influence or derive from usability studies focused on user experience and effectiveness.