Discuss the challenges and methodologies for identifying and measuring spillover effects in a causal inference framework.

Instruction: Describe potential strategies for detecting spillover effects in an experimental or observational study. Include any statistical or experimental designs you would consider to accurately measure these effects.

Context: This question probes the candidate's depth of knowledge in advanced causal inference topics, specifically in handling complexities such as spillover effects where interventions on one unit may affect outcomes on another. It assesses the ability to design studies or adapt analysis techniques that accurately capture these interdependencies.