RELIABILITY

What does reliability refer to in the context of testing?

• The uniqueness of test questions

  
  

• The consistency of test scores

How is the reliability coefficient measured?

• On a scale from 0 to 1

• On a scale from 1 to 10

Why is the split-half method commonly used to calculate the reliability coefficient?

• To increase the difficulty of the test

• To estimate consistency effectively and economically

What is the relationship between reliability and decision-making in the context of the National high school exam in Vietnam?

• Higher reliability is crucial for informed decisions.

• Lower reliability is acceptable for making decisions.

  
  

What kinds of items that permit scoring which are as objective as possible?

• 1. Multiple-choice and open-ended items

• 1. Multiple-choice and answer-produced items

How many independent scorers are allowed to score the scripts?

• 1. less than 2

• more than 2

Why is it essential to exclude items with poor discrimination?

• They contribute little to the reliability of the test.

• They make the test longer.

  
  

In the context of writing tasks, what does restricting the range of possible answers aim to achieve?

• It ensures more consistent performance and improved reliability.

  
  

• It encourages creative responses.

  
  

What does it mean for additional items to represent a "fresh start" for the candidate?

• It repeats the same question with different wording.

  
  

•  It provides new information and a new opportunity to demonstrate skills.

  
  

Why is it important to subject test items to the scrutiny of colleagues during the drafting phase?

• To add complexity to the items.

  
  

• To identify potential problems with item clarity.