👥 Between-Group Design §

🗂 Structure: §

• multiple groups
• Group 1 → one condition
• Group 2 → another condition

👍 Pros §

• Avoids learning effect
• Better control over fatigue

👎 Cons §

• Larger 🍔 Sample size
• individual differences
• greater within treatent variation → less test power
• Solution: 🧪 Pre- and Post-Testing