Most workplace training is forgotten within days

People sit through the annual training, click to the end, pass the quiz, and feel like they have ticked the box. A month later, when something real happens, most of it has gone. That is not a failure of effort or attention. It is simply how memory works. And for employers, it now matters more than ever.

The forgetting curve

Back in 1885, a psychologist called Hermann Ebbinghaus measured how quickly we forget new information. His findings have been tested many times since, including a careful 2015 study published in the journal PLOS ONE that repeated his work and confirmed the pattern. The short version: without any reinforcement, we forget around half of what we have just learned within an hour, and most of it within a few days.

So a one-off e-learning module is fighting a losing battle. The information goes in, and most of it leaves again within the week. By the time someone actually needs it, when a colleague makes a disclosure, or a conversation turns difficult, the training is a distant memory.

Little and often beats once a year

Decades of research point to a simple fix. Instead of cramming everything into one long session, you spread the learning into small pieces over time. A major review of 254 separate studies (Cepeda and colleagues, 2006) found that spacing learning out produces significantly better long-term memory than doing it all at once.

There is a second part to it. We remember things far better when we have to actively recall and use them, rather than just read or watch. Reading a policy is passive. Being put in a realistic situation and having to decide what you would actually say is active. The active version is the one that sticks.

Put those two together, little and often plus genuine practice, and you get something that changes how people behave, not just something that informs them for an afternoon.

The training that does happen is often the wrong kind

This is not only about harassment training. In the UK, the Chartered Management Institute found that 82 percent of managers have had no formal management training at all (CMI, 2023). The people most likely to receive a disclosure or have to handle a conflict are frequently the least prepared for it.

And even when training does happen, it rarely makes it back to the job. The CIPD found that only 36 percent of line managers actively help their teams use what they have learned back in the workplace (CIPD, 2024). Learning that is never applied is learning that fades.

It is not only that people forget. Even when they remember, the training often does not match real life. A 2026 survey found that 45 percent of workers said their compliance training was disconnected from the real situations they actually face (TalentLMS, 2026, a US survey). Knowing the policy is not the same as being ready for the moment.

Why this matters now

There is a hard business reason to get this right, not only a moral one. Since October 2024, under the Worker Protection Act, UK employers have had a legal duty to take reasonable steps to prevent sexual harassment at work. From October 2026, under the Employment Rights Act, that duty gets stronger: employers will need to take all reasonable steps, a higher bar that expects planned, documented prevention rather than a reaction after something has gone wrong.

The Equality and Human Rights Commission has been clear that effective training is part of meeting this duty. The important word is effective. Training that everyone has forgotten within a week is unlikely to count for much if an employer ever has to show what it actually did.

What good looks like

The answer is not more training. It is better-designed training. In practice that means:

• Short, regular sessions instead of one long annual event, so learning is reinforced over time rather than left to fade.
• Real practice, not passive watching. People rehearse the actual moments they will face and decide what they would do, somewhere safe where it is fine to get it wrong and learn.
• Feedback that helps people improve, rather than a simple pass or fail.

This is the thinking behind Scenari. Instead of watching a video once a year, people step into realistic workplace situations, type what they would really say, and get supportive, trauma-informed coaching that helps them get better. It works the way memory actually works: little and often, by doing.

Your people do not need to be told the rules one more time. They need to be ready for the moment those rules are tested. That is the difference between ticking a box and being genuinely prepared, and from October 2026, it is the difference the law will be looking for too.

Sources

• Ebbinghaus, H. (1885), Memory: A Contribution to Experimental Psychology; replicated in Murre and Dros (2015), PLOS ONE.
• Cepeda, N. and colleagues (2006), review of 254 studies on spaced practice, Psychological Bulletin.
• Chartered Management Institute (2023), research on "accidental managers."
• CIPD (2024), findings on transfer of learning to the workplace.
• TalentLMS (2026), survey of 1,000 workers (US).
• Worker Protection (Amendment of Equality Act 2010) Act 2023; Employment Rights Act 2025; Equality and Human Rights Commission technical guidance.