Which of the following is a disadvantage of moderated usability studies?

The high cost associated with moderated usability studies is a significant disadvantage. These studies require resources such as skilled moderators, equipment for recording sessions, and potentially compensation for participants. The need for a controlled environment and the presence of a moderator to facilitate interactions also adds to logistical expenses. In contrast, unmoderated studies can be conducted more cheaply and can yield valuable insights without the same level of investment.

Although options relating to natural product interactions, more accessible scheduling, and increased participant pool size may have their advantages, they do not directly address the economic implications that can make moderated studies prohibitive for some organizations. Thus, understanding the cost factor is crucial when planning usability studies, especially for teams with limited budgets.