Ningning, a manager at a retail company, is required to gather job analysis information from many employees performing similar tasks. What is the most suitable method for her?

The most suitable method for Ningning to gather job analysis information from many employees performing similar tasks is holding a group interview with a supervisor. This approach allows her to gather insights from multiple employees in a single session, facilitating discussion about their roles and responsibilities in a way that individual interviews might not. Group interviews can foster interaction among employees, leading to more detailed and nuanced information as they can clarify and build on each other's responses.

Moreover, including a supervisor in this session is advantageous because the supervisor can offer additional context and insights about the employees' tasks that may not be visible to the employees themselves. This method is efficient in terms of time, as it reduces the need for multiple individual sessions, and encourages the sharing of ideas and experiences that may lead to a more comprehensive understanding of job roles.

Other methods, such as individual interviews, while providing depth, may take significantly longer and not capture the collective dynamics among employees. Surveys could provide quantitative data but may lack the depth and context that a group discussion provides. Observation is direct and useful but might not capture the full scope of job duties, especially those that are cognitive or involve interaction. Therefore, the group interview with a supervisor is particularly effective for obtaining comprehensive and collaborative job analysis information.