Describe at least three effective methods for improving reliability of a classro

Question

Describe at least three effective methods for improving reliability of a classroom test?
What does interrater reliability measure? In what types of cases or assessments is it important?
Describe the factors that influence reliability. Provide an example of each.
A reliability coefficient (r) and a standard error of measurement(SEM) were computed on a test with 10 items. What would happen to those statistics if the test was increased to forty items? Describe at least three effective methods for improving reliability of a classroom test?
What does interrater reliability measure? In what types of cases or assessments is it important?
Describe the factors that influence reliability. Provide an example of each.
A reliability coefficient (r) and a standard error of measurement(SEM) were computed on a test with 10 items. What would happen to those statistics if the test was increased to forty items?
What does interrater reliability measure? In what types of cases or assessments is it important?
Describe the factors that influence reliability. Provide an example of each.
A reliability coefficient (r) and a standard error of measurement(SEM) were computed on a test with 10 items. What would happen to those statistics if the test was increased to forty items?

Explanation / Answer

1)

The methods for improving reliability of classroom tests are as follows:

2)

Inter-rater reliability is the level of agreement between raters or judges. If all are believes, IRR is 1 (or 100%) and if all are not believes, IRR is 0 (0%).

There are several methods exists for assessing the inter-ratee reliability.

They are as follows:

a. Percent Agreement

b. Cohen's Kappa

c. Interclass correlation

d. Flies Kappa

The above mentioned methods are used to depends on the number of data values and number of raters available.

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