In-depth Interview (IDI)

Why In-depth Interviews are Important in User Research

In-depth interviews are crucial in user research because they provide rich, detailed information that can't be obtained through quantitative methods alone. They allow researchers to:

• Explore complex topics in detail
• Uncover unexpected insights and user pain points
• Understand the context behind user behaviors and preferences
• Build empathy with users through direct conversation

How to Conduct an Effective In-depth Interview

To get the most out of an IDI:

1. Prepare a discussion guide with open-ended questions
2. Create a comfortable, non-judgmental environment for the participant
3. Use active listening techniques and probe for deeper insights
4. Allow for flexibility in the conversation to explore unexpected topics
5. Record the interview (with permission) for later analysis

Examples of In-depth Interview Questions in User Research

• "Can you walk me through your typical process for [specific task]?"
• "What challenges do you face when using [product/service]?"
• "How does [product/service] fit into your daily routine?"
• "Can you tell me about a time when you felt frustrated while using [product/service]?"

Frequently Asked Questions

• How long should an in-depth interview last?: Typically, IDIs last between 30 minutes to 1 hour, but can be longer for complex topics.
• How many participants are needed for in-depth interviews?: The number varies, but 5-15 participants often provide sufficient insights for many user research projects.
• What's the difference between an in-depth interview and a focus group?: IDIs are one-on-one conversations, while focus groups involve multiple participants discussing together.
• Can in-depth interviews be conducted remotely?: Yes, IDIs can be effectively conducted via video calls or phone, making them versatile for remote research.