True or false: Root cause analysis (RCA) investigates patterns of negative effects to determine specific actions that led to a problem.

Root cause analysis (RCA) is a systematic method used to identify the underlying reasons for a problem or adverse event. By investigating patterns of negative effects, RCA focuses on the 'why' behind those problems rather than just addressing the symptoms. This process aims to uncover the specific actions, events, or conditions that contributed to the occurrence of the issue, thus allowing for the development of effective interventions to prevent recurrence.

This emphasis on understanding the fundamental causes rather than just the immediate issues distinguishes RCA from other analysis methods. Therefore, the statement is accurate as it captures the essence of how RCA functions within quality improvement and safety initiatives in occupational health and other fields.