Online Assessment Platform Development

Structured question bank with item metadata covering subject, topic, subtopic, difficulty level, cognitive level, and question type for precise filtering and adaptive selection. Question types supported include multiple choice, multi-select, short answer, extended essay, drag-and-drop ordering, hotspot image selection, and audio or video response items. Rich text editing for questions and answer options, with support for mathematical notation, diagrams, and code blocks. Version control creates a new version for each question edit rather than overwriting the item, preserving historical performance data linked to the original. Editorial review workflow sends new and revised questions through a review and approval process before they enter the live item pool.

Computer adaptive testing engine that adjusts question difficulty in real time based on candidate performance during the exam session. Item response theory scoring estimates candidate ability at each checkpoint, with standard error tracked alongside the ability estimate so the engine knows when it has enough information to stop. The item selection algorithm chooses the next question to maximise information gain at the current ability estimate rather than following a fixed sequence. Configurable stopping rules are based on a target standard error, a maximum item count, or a fixed time limit. Content balancing fills the required topic distribution regardless of where the adaptive algorithm takes the ability estimate.

Browser lockdown mode prevents candidates from switching tabs, opening other applications, copying text, or using browser developer tools during the exam session. Randomised question delivery order per candidate, with answer option randomisation for multiple-choice items, means no two candidates see the same exam in the same order. Per-candidate time limits trigger automated submission when time expires so no exam remains open past the allowed duration. Exam session token validation means only authorised candidates with a valid registration can access the exam. Configurable item review and flag behaviour matches the rules of your specific exam: some programmes allow review of answered items, others don't.

Automated scoring for all objective question types: multiple choice, multi-select, drag-and-drop, hotspot, with results available immediately on submission. Configurable scoring rules include negative marking for incorrect responses, partial credit for partially correct multi-select responses, and domain-weighted scoring where different topic areas carry different weights in the total score. Rubric-based grading workflow for constructed-response and essay items includes blind marking support so markers score without seeing the candidate's identity or prior scores. Score release rules are configurable by the exam programme: immediate release, delayed release on a set date, or held pending moderation.

Identity verification at session start uses document scan and facial recognition match before the exam unlocks. Live remote proctoring integrates with platforms including Proctorio and ProctorU for human-supervised high-stakes exams. Recorded session proctoring covers exams where live supervision isn't required but a recording for audit purposes is. AI-assisted anomaly detection flags behaviours such as looking away from the screen, second face detection, or audio anomalies, with flags sent to human reviewers rather than triggering automatic disqualification. An incident log per exam session records all flags with timestamps for review by the exam authority.

Item-level analytics for each question in the bank: difficulty index showing the proportion of candidates answering correctly, discrimination index measuring how well the item separates high-scoring from low-scoring candidates, and distractor analysis showing the selection rate for each incorrect answer option to identify plausible versus implausible distractors. Candidate performance reports break down by topic, cognitive level, and question type so score reports carry actionable diagnostic information beyond a total score. Cohort-level score distribution shows pass rate, mean score, and standard deviation for each exam administration. Exportable reports are formatted for accreditation bodies, regulatory authorities, or institutional stakeholders who need structured data rather than a dashboard view.