Week #5 - Measurement

I. Levels of Measurement

• Nominal
• Ordinal
• Interval
• Ratio

II. Turning Concepts into Variables

• Concepts
• Indicators
• Operationalizations
• Variables

III. Scales

• Likert
• Guttman

IV. Reliability

• Test Retest
• Split Half

V. Validity

• Content
• Construct
• Criterion
  • Concurrent
  • Predictive