Computer-based Testing (CBT)

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Computer-based Testing (CBT) by Mind Map: Computer-based Testing (CBT)

1. Definition

1.1. Computer-based tests (CBTs) include not just tests administered on computers or workstations but also exams delivered via other electronic devices.

2. Features of CBT

2.1. Measurement efficiency

2.1.1. CBT designs differ considerably in measurement efficiency, which can be loosely defined as “reliability divided by test length.”

2.2. Test security

2.2.1. The administration environment for CBTs can greatly reduce the possibility of students copying from one another.

2.2.2. CBT designs that vary the items administered or the order of their administration across students are even better in this regard.

2.2.3. Items stored in encrypted files on a computer are also much better protected.

2.3. Item development requirements

2.3.1. CBT designs differ considerably in the number of items that need to be developed to properly support administration.

2.4. Design complexity

2.4.1. Test administration model

2.4.2. Scoring methodology

2.4.3. Mechanisms

2.5. Cost

2.5.1. Item development

2.5.2. Administration logistics

2.5.3. Score reporting

2.5.4. Statistical work

3. Advantages and disadvantages of CBT

3.1. (+)

3.1.1. Change the nature of what is being measured. Measure the ability to comprehend spoken language, speak, and even converse. Allow examinees to interact directly with the software.

3.1.2. Improve measurement precision or efficiency. Successively changes as the examinee’s performance level is revealed

3.1.3. Make test administration more convenient. tests become examinees, test sponsors, or both

3.2. (-)

3.2.1. Certain limitations for constructed – response tests

3.2.2. Students are required to have computer-using knowledge.

3.2.3. Inflexibility in answers.

3.2.4. Teacher’s technological skills.

3.2.5. Expense

4. Examples of CBT

4.1. TOEFL iBT

4.2. APTIS

4.3. CAE

4.4. FCE