Which pioneering market research technique was first widely adopted by US federal agencies in the 1970s to improve public service delivery?

The relationship between government agencies and market research has evolved significantly over the decades, influencing policy decisions and public service delivery. This poll tests your knowledge of how government entities have used market research to shape their approaches to citizen engagement and service development. Understanding this history provides insight into the current methodologies used by political organizations and government agencies when developing new initiatives.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Focus groups with citizens to evaluate proposed government programs
Digital sentiment analysis of public opinions on government services
Random-digit-dial telephone polling for policy feedback
A/B testing of different government communication approaches