What does the term reactivity refer to in behavioral observation?

The term reactivity in behavioral observation refers specifically to the change in behavior that occurs when an individual is aware they are being observed. This awareness can alter how individuals behave, often leading them to modify their actions to either conform to expectations or to behave in a way they think might be considered more acceptable. This phenomenon is important in research and practice because it can affect the validity of the data collected; the behaviors observed may not accurately reflect the individual’s natural patterns when they are not under observation.

Other aspects of behavioral observation, such as the response exhibited during natural observation or the interaction level between the observer and the subject, do not capture the essence of reactivity. Additionally, the accuracy of recorded behavior is relevant to the reliability and validity of the methodology, but it does not define reactivity itself.