Which technique is used when understanding how individuals make decisions?

The Sphere of Influence technique is used to understand how individuals make decisions by analyzing the various people and factors that impact a person's choices. This technique emphasizes the importance of identifying and understanding the relationships and networks around an individual. By mapping out these influences, one can gain insights into how specific stakeholders, colleagues, or broader social networks can affect decision-making processes.

In contrast, the other techniques focus on different aspects of decision-making. A Decision Matrix helps in evaluating options against various criteria but does not focus on interpersonal influences. Cost-Benefit Analysis examines the financial implications of a decision without considering the social or relational context. Stakeholder Analysis identifies individuals who have an interest in a project or decision but may not fully delve into the dynamics of influence in personal decision-making processes. Thus, the Sphere of Influence is particularly effective for understanding the external and internal factors at play in decision-making for individuals.