What is Test Reliability, and What Difference Does It Make? COPA
- Author(s):
- Livingston, Samuel A.
- Publication Year:
- 1980
- Source:
- ETS COPA Scope, v3 n1 p1-3, Sep 1980
- Document Type:
- Article
- Page Count:
- 3
- Subject/Key Words:
- Center for Occupational and Professional Assessment (COPA), Test Reliability, Error of Measurement, Test Length, Correlation