What method is best for gathering information about behaviors without interference?

Observation is the best method for gathering information about behaviors without interference because it allows researchers to watch individuals in their natural environment without influencing their actions. This method provides a more authentic view of behaviors as participants are unaware that they are being studied, which minimizes the impact of external factors or the presence of a researcher that could alter their behavior.

Surveys, focus groups, and interviews typically involve direct engagement with participants, which can lead to biased responses either because participants may modify their behavior due to the presence of the researcher or may not respond truthfully to questions. In contrast, observation captures genuine actions and interactions as they occur spontaneously, providing valuable insights into real-life behaviors.