RELIABILITY

Fill in the Blank:

________ is a numerical index that ranges from 0 to 1 and indicates the reliability of an assessment, with a value closer to 1 indicating high reliability.

TRUE or FALSE

Test-retest reliability is used to assess the consistency of scores across different items within a single test.

• TRUE

• FALSE

Which of the following types of reliability assesses the consistency of scores within a single test by comparing the responses to similar questions?

• Test-retest reliability

• Internal consistency reliability

• Test administration reliability

• Rater reliability

In IRT, what happens when a student correctly answers a difficult question?

• The next question is easier.

• The next question is more difficult.

• The student's test ends.

• The student's ability estimate decreases.

If a student's observed score is 80 and the SEM is 5, what does the SEM suggest about their true score?

• The true score is exactly 85.

• The true score is exactly 75.

• The true score is likely between 75 and 85.

• The true score is exactly 80.

If a student could take a test an infinite number of times, what would their true score be?

• The average of all their scores

• The highest score they achieved

• The lowest score they achieved

• The score they received on the first attempt

If the standard deviation of test scores is 12 points and the reliability coefficient is 0.81, what is the SEM?

• 2.4 points

• 3.6 points

• 4.8 points

• 6 points

TRUE or FALSE:

We should give freedom to candidates as much as possible to enhance the test reliability.

• TRUE

• FALSE

The additional items should be __________________of each other and of existing items

TRUE or FALSE

The test designers mustn’t add non-discriminating items in all tests

• TRUE

• FALSE