In social psychology, the foot-in-the-door phenomenon refers to the tendency to:

• A. Agree to a large request after first agreeing to a small request
• B. Refuse all requests after being asked for something unreasonable
• C. Comply with a small request only if a large request is refused first
• D. Change one's attitude to match one's behavior after making a decision

Answer: (A)

Verified step by step guidance

1. Understand that the foot-in-the-door phenomenon is a concept in social psychology related to compliance and persuasion.
2. Recognize that this phenomenon involves a sequence of requests, where agreeing to a small initial request increases the likelihood of agreeing to a larger request later.
3. Identify that the key idea is that once a person agrees to a small request, they are more likely to comply with a subsequent larger request because of a desire for consistency in their behavior.
4. Compare the options given and note that the correct description matches the idea of agreeing to a large request after first agreeing to a small request.
5. Conclude that the foot-in-the-door phenomenon is best described as the tendency to agree to a large request after first agreeing to a small request.