Observed test scores
3 important questions on Observed test scores
What do we mean by the weighted test score of a test taker?
- some items differ in importance.
- so weight is assigned to different items to make them count more.
What is the formula for the weighted test score?
WS = Σ wk x Xjk
What do the correlation and the covariance say about the items?
- correlation and covariance are measures of association
- when you find high correlation/covariance it is likely that the items measure the same construct
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
