1. Chapter 6 Measuring Instruments

2. ALL VARIABLES ARE NOT MEASURED THE SAME Nominal Variables Ordinal Variables Interval Variables Ratio Variables

3. QUESTIONS TO ASK BEFORE MEASURING A VARIABLE Why Do We Want to Make the Measurement? What Do We Want to Measure? Who Will Make the Measurement? What Format Do We Require? Where Will the Measurement Be Made? When Will the Measurement Be Made?

4. TYPES OF MEASURING INSTRUMENTS Journals or Diaries Logs Checklists Summative Instruments

5. STANDARDIZED MEASURING INSTRUMENTS Locating Standardized Measuring Instruments –Publishers –Professional journals and books