Study Design
20 articles
Design effective research studies with AI-guided interview briefs, methodologies, and question frameworks.
Research Interview Template Library: 10 Proven Question Sets for Common Research Jobs
Stop starting from a blank page. This library gives you 10 ready-to-use interview question sets — for discovery, churn, onboarding, NPS follow-up, and more — each designed for Koji structured AI interviews.
Company Context: How to Make Your AI Interviewer a Domain Expert
Learn how to configure Koji's company context setting so your AI interviewer asks sharper, more relevant follow-up questions across every study you run.
Scale Questions in AI Interviews: Measure NPS, CSAT, and Ratings Automatically
Learn how to configure and use scale questions in Koji AI interviews to capture NPS, CSAT, and satisfaction ratings — with automatic probing and aggregated distribution charts in your research report.
How Koji's AI Follow-Up Probing Works: Going Deeper Than Any Survey
Understand how Koji's AI interviewer automatically asks follow-up questions to go deeper on every answer — and how to configure probing depth, custom instructions, and anchor behavior for scale questions.
Structured, Exploratory, and Hybrid: Choosing the Right Interview Mode in Koji
A complete guide to Koji's three interview modes — structured, exploratory, and hybrid — and when to use each for your research goals.
Choice and Ranking Questions in AI Interviews: Capture Preference Data at Scale
Learn how to use single choice, multiple choice, ranking, and yes/no questions in Koji AI interviews — with automatic report charts that show preference distributions across all your participants.
AI Discussion Guide Generator: Auto-Generate Interview Guides From Your Research Goals
How AI discussion guide generators work in 2026, what makes a good auto-generated interview guide vs. a templated one, and how Koji turns a 2-sentence research goal into a complete moderator-ready guide in 60 seconds — including warm-up, core questions, scales, and adaptive probing rules.
Writing a Research Question
Learn how to frame a clear, focused research question that sets the foundation for a successful study.
Working with the AI Consultant
Tips and strategies for chatting effectively with Koji's AI Consultant to design a strong research study.
Understanding the Research Brief
A walkthrough of every section in your Koji research brief and how to read it effectively.
Editing the Brief Manually
How to directly edit your research brief to fine-tune questions, methodology, target audience, and more.
Uploading Context Documents
How to add background files to your study for better AI-generated questions and more relevant interviews.
Choosing a Methodology
An overview of every research methodology Koji supports and when to use each one.
Publishing Your Study
What happens when you publish, what to check before going live, and how to share your interview link.
Structured Questions in AI Interviews
Mix quantitative data collection — scales, ratings, multiple choice, ranking — with AI-powered conversational follow-up in a single interview.
How to Customize Interview Questions: Edit, Reorder, and Tailor Your Research Guide
Learn how to customize AI-generated interview questions in Koji. Covers when to edit the draft, how to add structured questions (scale, ranking, yes/no, multiple choice), the funnel order, pilot testing, and the five most common mistakes researchers make.
Willingness-to-Pay Interview Template (Van Westendorp + AI)
A ready-to-clone Van Westendorp pricing interview template using Koji structured questions. Map the four price points, capture qualitative reasoning, and auto-aggregate willingness-to-pay distributions.
How to Customize AI Interview Questions: A Step-by-Step Guide
Learn how to customize AI-moderated interview questions in Koji — edit core questions, add structured question types, tune follow-up probing, and adapt your interview guide to any research goal.
Customer Interview Questions: 60+ Examples for Discovery, Validation, Pricing, and Churn
A reference library of 60+ proven customer interview questions for discovery, validation, pricing, NPS follow-up, and churn — plus the principles that separate questions that surface real insight from ones that produce polite lies.
Yes/No Questions in Koji AI Interviews: When Binary Questions Reveal Surprising Insights
Learn how yes/no questions work in Koji AI interviews — with automatic AI probing, pie chart visualization in reports, and the nuances that make binary questions far more powerful than survey checkboxes.