Which of the following is NOT a common problem faced when conducting job analyses?

Focusing on a specific purpose of the job analysis is not considered a common problem. In fact, having a clear purpose is crucial for effective job analysis. It helps ensure that the data collected is relevant and aligned with the organization's needs, whether it's for recruitment, performance appraisal, or training purposes. A well-defined objective allows the team conducting the analysis to tailor their approach, ensuring that the job descriptions created will meet the specific requirements for the role.

In contrast, the other options are indeed common problems. Inconsistent job descriptions can arise when there is a lack of clarity in job roles or when multiple analysts provide differing perspectives. Lack of employee participation can hinder the validity of the data collected, as employees often hold valuable insights about their roles that need to be included. Difficulty in obtaining accurate data can occur due to biases, vague descriptions, or the reliance on outdated information. All these aspects can significantly impact the overall effectiveness of the job analysis process.