Final answer:
Job analysis is the systematic study of a job, including tasks and the attributes needed to perform them, not just a collection of tasks. Its reliability can vary based on the method and the provider of the job information.
Step-by-step explanation:
The statement that job analysis is merely the collection of tasks and responsibilities performed by one person is partially true, but it does not capture the complete scope of job analysis. Job analysis is a systematic process of gathering, documenting, and analyzing data about the work required for a job. It encompasses understanding the tasks that need to be performed, as well as the skills, knowledge, and abilities necessary to perform them. This information is crucial for various organizational purposes, including recruitment, selection, training, and performance appraisal. According to research by Dierdorff & Wilson (2003), the reliability of job analysis can vary depending on who provides the information and how it is collected. Methods such as observation, surveys, and interviews are commonly used to capture accurate job data. Industrial-organizational (I-O) psychologists are integral in the job analysis process, utilizing task-oriented or worker-oriented approaches for describing a job and its requirements. The task-oriented approach lists tasks performed on the job, while the worker-oriented approach outlines the necessary worker characteristics.