Secure Online Testing
& Assessment Platform
b4skills offers innovative English assessment solutions powered by IRT psychometrics and AI-assisted scoring in a secure environment. For universities, schools, and global enterprises.
We specialize in English assessments.
Measure Your Exact English Level
with Adaptive IRT
No account needed. Our AI-powered adaptive engine serves the best questions from our item bank, personalised to your level in real time using IRT psychometrics.
Takes about 20–30 minutes
Redefining Assessment with
Adaptive Intelligence
We ditched static tests. b4skills combines real-time psychometric algorithms with robust multimodal AI to measure authentic English proficiency dynamically.
Dynamic IRT Calibration
Our engine recalculates candidate ability (θ) after every single interaction using the 3-Parameter Logistic model. The result? A highly precise CEFR level in a fraction of the time of traditional exams.
Zero-Trust
Proctoring
Camera and browser activity signals can support human review of assessment integrity. Monitoring cannot guarantee the prevention of misconduct.
Multi-Tenant Scale
Perfect for B2B. Custom branding, localized data isolation, and deep cohort analytics right out of the box.
Multimodal AI Scoring
AI-assisted scoring uses the providers configured for the assessment. We don't just score multiple choice. Our engine listens to spoken responses and reads essays, grading nuance, lexical range, and grammar against strict CEFR rubrics.
Smart Test &
Assessment Design
Empowering progress through engagement, personalized precision, and deep psychometric analysis.
Adaptive Intelligence
Item Response Theory (IRT) adjusts the difficulty level dynamically based on real-time responses.
Advanced Psychometrics
Comprehensive insights into learner performance with automated bias detection and trait analysis.
Engaging Experience
Interactive navigation and user-friendly flows keep learners motivated and focused.
A Highly Modular,
Custom Experience
Why settle for rigid exams? We've engineered an evaluation framework that morphs to fit your precise organizational needs and the candidate's evolving skill level.
Deploy independent testing blocks. Assess speaking, writing, reading, or listening—separately or combined into a unified workflow.
Built on a fluid architecture that adjusts complexity on-the-fly, pinpointing exact proficiency without discouraging the learner.
Granular CEFR alignments designed specifically for demanding academic admissions, corporate hiring, and continuous training.
Adaptive stopping rules use product-specific precision targets and question limits. Actual measurement error is reported with the result.
Next-Gen Architecture,
Unbounded Potential
Fusing cognitive science with advanced machine learning, we deliver a paradigm shift in precise language assessment for modern institutions and ambitious learners.
Interactive Preview
Try a Real Adaptive Question
Select a skill below, answer the question, and see how the engine responds.
Reading · Level B1
Sample question 4
Estimated Level
Reading Passage
The rapid growth of remote work has transformed how companies think about office space. Many organisations that once required employees to commute five days a week now operate with a flexible hybrid model, blending in-office collaboration with home-based productivity.
According to the passage, what change have many organisations adopted?
Select an answer above to see how the adaptive engine responds.
20–30 min · No account needed · Provisional CEFR estimate
Contact b4skills
Discuss institutional assessments, integrations, or a custom platform.
hello@b4skills.com