☠️ Error types §

Types §

	accept H0	reject H0
H0 = true	✅	1️⃣ Type 1 error
H0 = false	2️⃣ Type 2 error	✅

• Type 3: Wrong hypothesis, right answer
  • cause: e.g. wrong Hypothesis Variables, poor theory
• Type 4: Right hypothesis, wrong answer

  • cause: e.g. wrong hypothesis test

Reducing errors: §

• Increase 🎯 Accuracy, 🏹 Precision → less false positives (type 2 error)
• Increase 🛒 Recall / coverage → less false negatives (type 1 error)