For many standardized tests, scorers are asked to use grading rubrics to score essay sections. Which threat to validity might grading rubrics help reduce? List the steps you would go through to ensure...

For many standardized tests, scorers are asked to use grading rubrics to score essay sections. Which threat to validity might grading rubrics help reduce?

List the steps you would go through to ensure that two groups participating in a study of attitude toward divorce are equally matched.