Which term refers to the activity of living organisms, including detectable displacement in space through time and resulting in a measurable change in at least one aspect of the environment?

• A. Baseline
• B. Behavior Change Tactic
• C. Behavior
• D. Behavior Checklist

Answer: (C)

Behavior is the activity of living organisms that can be observed and measured. It includes detectable displacement in space through time and any action that leads to a measurable change in at least one aspect of the environment. This fits because it focuses on observable actions that can be quantified, not on data collection phases or intervention strategies. Baseline refers to the initial data collected before an intervention, a Behavior Change Tactic is a method used to alter behavior, and a Behavior Checklist is a tool for recording whether behaviors occur—none of which define the activity itself.