Phân loại data

Question 1

Nominal
Ordinal
Interval
Ratio

Answer 1

1. Nominal: categories (no ordering or direction)
2. Ordinal: ordered categories (rankings, order, or scalling)
3. Interval: differences between measurement but no true zero
4. Ratio: differenced between measurement, true zero exists

Quanlitative: Nominal, ordinal
Quantitative: Interval, ratio

• Nominal: eye color, which social media, security numner, age range 18-25
• Ordinal: priority, ranking 1-5, level of satisfaction
• Interval: attitudes, beliefs (not measured by number, disagree - agree 1 to 5)
  + Likert (only ask one variable)
  + Semantic (ask many variables)
  + Stapel scale (có số âm)
  + Slider scale (kéo thanh)