Final answer:
The advantage of conventional questionnaires and interviews used for job analysis is the availability of in-depth information, which provides comprehensive insights into the specifics of a job role that are not immediately obvious through objective measures.
Step-by-step explanation:
Among the options given for the advantages of conventional questionnaires and interviews used for job analysis, the correct answer is d) In-depth information. These traditional methods allow for comprehensive data collection through open-ended questions and direct interaction with job incumbents and their supervisors. Such approaches capture subjective experiences and insights that may not be accessible through more standardized or objective means. In-depth information is a significant advantage because it helps to understand the nuances and specific requirements of a job role that might not be evident in standard questionnaires or during observation alone. Moreover, through interviews, you obtain first-hand insights into job complexities, challenges, and the skills required for effective performance. Therefore, while conventional questionnaires and interviews might be time-consuming and require more effort to analyze due to their subjective nature, the rich, detailed information they offer can be invaluable for accurate job analysis.