Running a computer-based test (CBT) can be significantly faster and more efficient than a traditional paper-based examination. However, the success of an online examination depends heavily on the software used to create, administer and manage it.

For schools, universities, training organisations, professional bodies and other institutions in Nigeria, choosing the right CBT software is therefore an important decision. The right platform should make it easier to manage examiners, candidates, questions and results while providing adequate security and support.

With many CBT platforms available, what should you look for before choosing one?

Here are the key factors to consider.

1. Features and functionality

The first thing to consider is what the CBT software can actually do.

Different platforms offer different features, and the features you need will depend on the type and scale of assessments you conduct. However, some capabilities should be considered essential.

Examiner management

Examinations contain sensitive information, particularly examination questions and answers. A good CBT platform should therefore provide proper user roles and access controls.

For example, if one examiner creates an examination, other staff members should not automatically have access to it unless the administrator gives them permission.

The platform should also make it possible to:

·        Create different staff roles and permissions

·        Control access to examination materials

·        Assign responsibilities to specific examiners

·        Remove a staff member's access when they leave an organisation

Proper access management helps reduce the risk of unauthorised access to confidential examination materials.

Candidate management

Adding candidates manually can become time-consuming, especially when an institution is conducting an examination for hundreds or thousands of people.

If candidate information is already available in a spreadsheet, the CBT platform should ideally support bulk candidate uploads rather than requiring every candidate to be entered individually.

It is also useful if the platform can notify candidates about their examinations directly. Depending on the provider, notifications may be delivered through channels such as email, SMS or WhatsApp.

Question authoring

Creating examination questions should be straightforward for examiners.

A complicated question-authoring process increases the likelihood of mistakes and can make the examination setup unnecessarily difficult.

When evaluating CBT software, look for platforms that provide convenient ways to create questions, such as:

·        A simple question editor

·        Support for different question types

·        Document or spreadsheet import

·        Question banks

·        AI-assisted question generation, where appropriate

The easier it is for examiners to create and review questions, the less time they need to spend preparing an examination.

Examination proctoring

For institutions concerned about examination malpractice, proctoring and monitoring capabilities are important considerations.

Depending on the platform, CBT software may monitor different signals and candidate activities, including audio, video, keyboard activity and cursor behaviour.

Some platforms can also apply restrictions during an examination, such as detecting when a candidate leaves the examination environment, switches browser tabs or attempts to access other applications.

The important consideration is not simply whether a platform claims to offer "proctoring", but what it actually monitors and how those controls work.

Results management

After an examination, examiners need an efficient way to access and manage candidate results.

A good CBT platform should make it possible to determine how and when results are released. Depending on the assessment, results may be available immediately after submission or released later following a review.

It can also be useful for the platform to provide built-in communication tools for sharing results or examination updates with candidates.

Candidate performance analysis

Raw examination scores do not always tell the whole story.

Examiners may need to understand how candidates performed across different questions, subjects or areas of an assessment.

CBT software that provides detailed reports, charts and performance analysis can help examiners identify areas where candidates are performing well and where additional teaching or preparation may be required.

2. Pricing and value for money

Cost is another important factor when choosing CBT software.

Conducting online examinations should not require an institution to spend more than necessary. Since CBT providers use different pricing models, it is important to understand exactly what you are paying for.

Consider questions such as:

·        Is pricing based on the number of candidates?

·        Is there a limit on the number of examinations?

·        Are important features restricted to higher plans?

·        Are there additional charges for SMS, storage or other services?

·        Can the plan be upgraded or downgraded when needed?

·        Is a free trial or free plan available?

Flexible pricing is particularly useful for institutions whose examination volumes vary throughout the year.

Rather than choosing the cheapest platform available, compare the overall value provided by each solution.

3. Data ownership, availability and security

Your examination data should not be trapped inside a CBT platform.

Before choosing a provider, find out whether you can export important information such as candidate records, questions, examination results and other relevant data.

Data portability is especially important if you eventually decide to move to another CBT provider.

You should also understand how the provider protects your data and what security measures are in place to prevent unauthorised access.

Do not rely solely on statements contained in a provider's privacy policy. Where possible, check whether the platform actually provides practical tools for exporting and managing your data.

4. Ease of use

A CBT platform can have an impressive list of features and still be difficult to use.

Consider the people who will actually interact with the system: administrators, examiners and candidates.

An administrator should be able to set up an examination without unnecessary complexity. Examiners should be able to create questions easily, while candidates should be able to understand how to access and complete their examinations without extensive technical assistance.

If possible, test the platform before committing to a subscription.

A trial can reveal usability problems that may not be obvious from a feature list or product demonstration.

5. Customer support

Technical problems are sometimes unavoidable, particularly when examinations involve large numbers of candidates.

What matters is how quickly and effectively the provider responds when something goes wrong.

Before choosing a CBT provider, consider:

·        How can you contact the support team?

·        How quickly do they respond?

·        Are support channels convenient for your organisation?

·        Is support available when your examinations are taking place?

·        Do they provide useful documentation or tutorials?

·        How do they handle technical complaints?

For Nigerian institutions, having a support team that is accessible during important examination periods can be particularly valuable.

A platform with excellent features but poor support can become a serious problem when an issue occurs during an examination.

6. Scalability and reliability

Your requirements may change as your institution grows.

A CBT platform that works well for 50 candidates may not necessarily provide the same experience when an examination involves hundreds or thousands of candidates.

Before choosing a provider, consider whether the platform can handle your expected examination volume and whether it can scale as your requirements increase.

It is also worth evaluating the platform's reliability during examinations. A system that becomes unavailable when candidates are taking an examination can have serious consequences.

What should you consider before choosing CBT software?

Before making a decision, create a simple checklist based on your institution's requirements.

At a minimum, evaluate:

1.   Examiner and user management

2.   Candidate management and bulk uploads

3.   Question authoring and question banks

4.   Examination security and proctoring

5.   Results management

6.   Candidate performance analysis

7.   Pricing and payment flexibility

8.   Data export and security

9.   Ease of use

10. Customer support

11. Scalability and reliability

You do not necessarily need a platform with every possible feature. The best CBT software is the one that provides the capabilities your organisation actually needs at a reasonable cost and with adequate support.

Final thoughts

Choosing CBT software is more than comparing feature lists and subscription prices. The platform you select will influence how easily your staff can prepare examinations, how securely examination materials are handled and how smoothly candidates experience the assessment.

For schools, universities and other organisations conducting online examinations in Nigeria, it is worth taking the time to compare different platforms, test their features and understand their pricing, data policies and support arrangements before making a commitment.

A good CBT platform should ultimately make examinations simpler to administer, easier to manage and more reliable for candidates and examiners.

This guide was developed from experience with conducting and deploying computer-based assessments. CBT Hub provides tools for creating and managing online examinations for organisations and examiners.