Glossary Term

Berkeley Puppet Interview (BPI)

A structured interview where two puppets present opposing statements and children choose the one most like them; foundational for child self-report, ages ~3–8.

The Berkeley Puppet Interview (BPI) is a validated, structured interview technique for young children. Two puppet characters take turns making dichotomous, first-person statements (e.g., “I like school” vs. “I don’t like school”), and the child selects which puppet is more like them. This method reduces social desirability pressure, improves engagement, and elicits developmentally-appropriate self-report data from early childhood.

Why researchers use BPI

  • Engagement-first: the puppet format meets kids at their level with play and storytelling.
  • Reduced cognitive load: two clear options limit cognitive load and working-memory demands.
  • Reliable measurement: supports better reliability for ages 4–8 than typical Likert scales.

Modern adaptations

Digital implementations like CHAT-E swap physical puppets for animated puppets while preserving the core forced-choice format. Platforms such as Puppet Interview bring BPI-style surveys to tablets with classroom-friendly workflows.

Try it: Build a short BPI-style survey and deploy it in minutes. Log in to the app to get started.

Related

CHAT-E · Dichotomous Item · Structured Interview · Reliability · Validity

Related Articles

Peer-Reviewed Research

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