Picture this: You sit down at your desk, fresh cup of coffee in hand, ready to finally tackle your most important project of the week. You’ve blocked out the time, your workspace is clean, and your intentions are pure. You open your laptop, but before your word processor or design software can even load, a Slack notification pops up in the corner of your screen. You click it. It’s a minor question from a colleague, but answering it requires a quick check of your email. While in your inbox, you notice a newsletter you subscribe to featuring a catchy headline. You open it, click a link, and end up reading an interesting but entirely irrelevant article. Suddenly, your phone buzzes a WhatsApp message from a friend sharing a meme. You reply with a laughing emoji, and then, driven by pure, unadulterated muscle memory, your thumb swipes over to open Instagram or LinkedIn. You scroll. You like. You watch a 30-second video. You look up at the clock. Forty-five minutes have passed. Your coffee i...

Learning Objectives By the end of this study module, you will be able to: Identify the core psychological laws governing human-computer interaction (HCI). Mathematically calculate decision-time variables using Hick’s Law. Apply Gestalt principles to create a visual hierarchy in web layouts. Implement strategic color theory to influence user emotions and conversions. Minimize cognitive load through standardized mental models (Jakob's Law). Module 1: Decision-Making & Memory Laws 1.1 Hick’s Law (The Law of Choice) Theory: The time required to make a decision is a result of the number of possible options. Mathematical Formula: $$T = b \cdot \log_2(n + 1)$$ T: Response time. n: Number of choices. b: Processing speed constant (varies by user). Professional Application: Menu Design: Instead of a single massive dropdown, use "Mega Menus" or "Categorized Tabs." Onboarding: Use "Progressive Disclosure." Don't show every feature at once; show only ...