Confirmation Bias

What Is Confirmation Bias?
Confirmation bias is our tendency to selectively seek or interpret data in ways that reinforce our existing views. For mobile app designers, this can be lethal—because it encourages ignoring evidence that something might be wrong (e.g., a drop in revenue or user engagement). You might brush off declining metrics as “seasonal” or “just a slow month,” rather than running an A/B test or investigating further. Over time, those unaddressed issues can snowball into critical user-experience problems or missed opportunities.

Why It Matters for App Design
Skewed Decision-Making
Designers who cling to “what they know” might disregard user feedback that contradicts their assumptions, leading to poor features or underwhelming updates.
Missed Growth
If you chalk up every dip in user metrics to external factors—like the weather—you risk ignoring real friction points (e.g., a glitchy checkout) that hamper retention or revenue.
Reduced Objectivity
Confirmation bias narrows your perspective. Instead of exploring possible causes, you double down on your original theory, missing valid solutions or innovative ideas.
Beating Confirmation Bias: Tips & Strategies

Test, Don’t Guess
Run A/B Tests whenever you suspect an issue—like a dip in user purchases or decreased feature adoption. Let the data reveal the true cause instead of relying on your hunches. If your belief holds up, great; if not, you’ve discovered critical insight early.

Seek Disconfirming Evidence
Actively look for proof that contradicts your assumption. For instance, if you believe users “love” your new “Buy Now” button, check metrics for actual usage. Gather user quotes that challenge your view. By embracing contradictory data, you refine your design decisions.

Involve Peer Accountability
Brainstorm tests and solutions in groups. Encourage your team members to challenge each other’s hypotheses. When multiple perspectives weigh in, it’s harder for one person’s bias to dictate the direction.

Combine Multiple Research Methods
Relying on a single metric or user survey can be misleading. Balance your approach with interviews, usability tests, analytics, and open-ended feedback forms. That cross-check of data ensures you don’t cherry-pick only the supportive stats.
Wrapping Up
Designers often stumble because they’d rather confirm their initial theories than confront inconvenient truths. Yet discovering uncomfortable data early on is a good thing: it lets you fix issues, pivot strategies, or refine features. In short, awareness of confirmation bias + solid testing practices = a thriving app.
Don’t let your assumptions steer your project astray. Keep your eyes wide open, your mind flexible, and your data honest—so you can build the best possible user experience for your audience.