This activity is also available in English. View activity 成效衡量方法:實驗法和觀察法 By Meta Blueprint Duration 5m Difficulty Advanced Rating 1 star 2 stars 3 stars 4 stars 5 stars Average rating: 0 0 No reviews Favorites 本單元將帶您比較「實驗法」和「觀察法」這兩種成效衡量方法。