A key implication of biosocial theory for intervention is that changing environmental factors can influence behavior.

• A. Only biology can be changed.
• B. Environmental factors can influence behavior.
• C. Behavior cannot be changed.
• D. Biology changes quickly with environment.

Answer: (B)

Biosocial theory shows that behavior comes from the ongoing interplay between biological factors and the social environment. Because of this, interventions often focus on changing environmental conditions to influence behavior, not just biology. By altering things like family dynamics, stress levels, peer influences, or access to resources, you can shape how behavior is expressed and managed, even if biological factors remain relatively stable. That’s why the statement about environmental changes influencing behavior fits best: it reflects the practical impact of modifying the surroundings to produce behavioral change.

Other ideas miss the practical and interconnected focus. Thinking only biology can be changed ignores the powerful role of the environment in shaping behavior, and saying behavior cannot be changed contradicts the goal of intervention. While environment can influence biology in some ways, biology doesn’t automatically or quickly shift in response to surroundings, so the emphasis remains on environmental modification as a means to influence behavior.