A UX designer is optimizing a form that has 6 input fields. The average time users take to complete the form is 90 seconds, based on a sample of 200 users. If a new prototype reduces the time per field by 15%, and each field contributes equally, what is the new average completion time?

Sun, 03 May 2026 05:29:19 +0000

Title: How UX Design Optimization Slashes Form Completion Time by 15% – Data-Driven Insights In the evolving world of user experience (UX) design, small but strategic improvements can have a significant impact on user behavior. A compelling real-world example illustrates how reducing form complexity enhances user efficiency—turning a 90-second completion time into a faster, smoother experience. ### The Original Form: 6 Input Fields Under Pressure
A typical user-facing form often includes six input fields, such as name, email, phone, address, date of birth, and preferences. Based on recent user testing with 200 participants, the average completion time was 90 seconds. Since the average time is evenly distributed across all six fields, each field contributes roughly 15 seconds—accounting for 16.67% of the total since 90 ÷ 6 = 15. ### The UX Optimization: A 15% Reduction in Time Per Field
In this optimization, the UX designer focused on streamlining the form by reducing the time mental and physical effort needed per input field by 15%. Because each field contributes equally, cutting the time per field by 15% directly reduces the average form completion time.