In HSE, there is a system of knowledge assessments:
Why is such a repetition system necessary? Where did it come from?
🔺Everything long-term (every 3 and 5 years) is designed not for repetition, but for updating knowledge and keeping it current.
🔻Every six months and every year is designed for repetition and solid retention of what was once learned.
By the way, if you understand how information is remembered, you can plan more targeted training and material repetition. First, you need to determine exactly what material needs to be memorized. This is often where the problem with defining the outcome lies — there's a desire to cram the uncrammable into one head at once! To make it fit, we still need to clarify exactly what we want the employee to remember every six months and every year.
Look at the most common mistakes that lead to industrial injuries — that will be the most relevant information for systematic repetition. For example, the use of workwear, footwear, and PPE: didn't wear boots — a pipe fell on the foot; didn't wear goggles — damaged the eyes; didn't wear ear protection — went deaf.