Stroop Test

The Stroop Test measures cognitive control and selective attention through color-word interference. This classic psychological test assesses your ability to suppress automatic reading responses and focus on the relevant dimension (ink color). How It Works: A word like "RED" may appear in green ink. Click the button that matches the ink color, not the word. You have 60 seconds. Your Score: Average reaction time = 60 seconds ÷ correct answers. Every correct click lowers your time; every wrong click wastes test time that doesn't count. A user with only a handful of correct answers scores badly — this is deliberate, so accuracy and speed both matter. The detail view also shows the classic "Stroop effect" (how much slower you are on conflicting trials). Why It Matters: The Stroop effect demonstrates how automatic processes can interfere with controlled attention—a fundamental aspect of executive function crucial for multitasking, ignoring distractions, and maintaining focus in complex environments.