Spaced Repetition

Spaced repetition is a study technique grounded in cognitive psychology that schedules review of information at increasingly longer intervals — daily, then weekly, then fortnightly — rather than massed practice (the 'cramming' approach). The spacing effect, first documented by Hermann Ebbinghaus, demonstrates that material reviewed across spaced intervals is retained far longer than the same material studied in a single session.

In L&D, spaced repetition is implemented through post-training reinforcement systems: short knowledge checks sent to learners at intervals after a course, micro-learning nudges that resurface key concepts, or manager-facilitated practice conversations. These spaced touchpoints interrupt the Ebbinghaus Forgetting Curve.

The challenge in corporate training is that most programmes are event-based — a single workshop or course — with no systematic follow-up. Organisations that implement spaced reinforcement programmes see significantly better knowledge retention at 30, 60, and 90 days post-training.

Effective spaced repetition does not require sophisticated technology. A well-designed sequence of brief emails, LMS knowledge checks, or WhatsApp nudges can implement basic spacing. More sophisticated platforms use adaptive algorithms to personalise the interval based on individual response patterns.