Creating and Interpreting the Achievement Scales
- Reviewing the ÷ÈÓ°Ö±²¥ and PIRLS 2011 Achievement Item Statistics
- Scaling the ÷ÈÓ°Ö±²¥ and PIRLS 2011 Achievement Data
- Estimating Standard Errors for the ÷ÈÓ°Ö±²¥ and PIRLS 2011 Achievement Data
- Using Scale Anchoring to Interpret the ÷ÈÓ°Ö±²¥ and PIRLS 2011 Achievement Scales