This article explores the science behind the Forgetting Curve and offers practical,
research-backed strategies to help trainers improve knowledge retention, ensuring
that training investments lead to long-term performance improvements.
Understanding the Forgetting Curve
The Forgetting Curve illustrates how memory retention declines over time. According to
Ebbinghaus, people forget nearly 50% of newly learned information within an hour,
and up to 90% within a week—unless the information is reinforced.
This decline happens due to:
● Lack of reinforcement – If new knowledge isn’t revisited, the brain deprioritizes
it.
● Information overload – Employees often receive too much training at once,
making retention difficult.
● Passive learning – Traditional one-time training sessions fail to engage learners
actively.
Why the Forgetting Curve Matters for Trainers
The Forgetting Curve isn’t just a psychological theory—it has real-world implications
for workplace training. If employees forget what they learn, organizations face:
Lower training ROI – Wasted time and resources on ineffective training.
Decreased productivity – Employees make mistakes due to forgotten information.
Compliance risks – Critical safety or regulatory knowledge may be lost.
Inconsistent performance – Knowledge gaps lead to inefficiency and errors.
To overcome these challenges, trainers must redesign learning experiences that
promote retention.
How Trainers Can Overcome the Forgetting Curve
1. Reinforce Learning with Microlearning