Microlearning and Spaced Repetition for Healthcare Shift Workers

Anyone who plans training in a hospital knows the picture: a room is booked and an announcement goes out, but the nurse coming off a night shift is exhausted, the day team can't leave the ward, and the night team isn't there at all. In the end, a second and a third session are scheduled for the same training. On top of that, how much of an intensive one-off session is still remembered a few months later is rarely measured.

Microlearning and spaced repetition tackle both problems together: breaking training into short units that fit between shifts, and making knowledge last by spreading it over time instead of "loading" it all at once. In this article, we look at the scientific basis of the method, design principles suited to shift work and what managers should measure.

What is microlearning?

Microlearning means training units that focus on a single learning objective and can be completed in a few minutes. A microlesson usually consists of a short explanation, an example or mini case, and one or two questions with immediate feedback.

What it isn't

• It isn't a long lesson cut into pieces. Slicing a one-hour presentation into twelve parts doesn't count as microlearning; each unit should have a meaningful objective of its own.
• It isn't just video. A video with no questions and no feedback produces a viewing record; it doesn't measure learning.
• It doesn't replace every kind of training. For hands-on skills, team drills or training that regulations require to be delivered in a specific way, short lessons complement rather than replace.

Spaced repetition and the testing effect: the science

What makes microlearning effective is less its brevity than its combination with two well-researched learning principles.

Spaced repetition

Spreading the review of a topic over time instead of studying it intensively in a single session is called spaced repetition. The meta-analysis by Cepeda and colleagues, published in Psychological Bulletin in 2006, brought together 839 comparisons from 317 experiments. One of its key findings: the longer you want information to be remembered, the longer the optimal interval between review sessions.

This has a practical consequence for hospital training. If the goal is for staff to remember a topic all year, reviews need to be spread over weeks and months rather than days.

The testing effect

The second principle is the "testing effect" (retrieval practice): trying to recall information from memory, rather than rereading it, strengthens long-term retention. In Roediger and Karpicke's 2006 study, participants who reread a text repeatedly did better on an immediate test, but on delayed tests the group that tested themselves remembered markedly more. A striking detail: the participants who reread felt more confident.

In 2008, Larsen, Butler and Roediger applied these findings to medical education in the journal Medical Education, arguing that tests can improve the retention of clinical knowledge when they are spaced over time, require effortful recall and are supported by feedback.

An example among health professionals

These principles haven't stayed in the lab. In a randomized controlled trial by Kerfoot and colleagues, published in the American Journal of Preventive Medicine in 2010, some of 95 primary care clinicians at eight medical centers of the US Department of Veterans Affairs (VA) were sent short clinical-scenario questions by email at spaced intervals over 36 weeks. The study looked at PSA screening orders considered inappropriate under age criteria. During the intervention period, the inappropriate ordering rate was 10.5 percent in the training group and 14.2 percent in the control group. Over the following 72 weeks of follow-up, these rates were 7.8 percent and 13.1 percent; the authors reported this as a 40 percent relative reduction.

It's worth remembering that a single study applies to a particular country and topic. Still, the finding matters because it suggests that spaced, question-based training can carry over from knowledge into clinical behavior.

Design principles for shift work

Flexible timing, consistent follow-up

In shift work, "everyone at the same time" doesn't work. Microlessons should be tied to a completion window, not a set time. Reminder notifications should adapt to each person's shift pattern; a training notification shouldn't be a distraction at the busiest hour of a shift.

One objective per unit

A good microlesson answers the question "What will staff be able to do at the end of this unit?" in a single sentence. For example: "Can list the checks to perform before administering a high-alert medication." If the objective is clear, the question is clear too.

A review schedule that widens over time

The table below is an illustrative setup. Research doesn't give a single ideal schedule for every topic; the core principle is that intervals lengthen as the target retention period lengthens.

Adapt to the individual

Repeating topics people already know is a waste of time. In Kerfoot's randomized trial published in The Journal of Urology in 2010, the group receiving adaptive spaced education, which limited repetition of content already learned, answered markedly fewer questions, while their end-of-course scores stayed similar to those of the comparison group. In practice, this means topics answered incorrectly come back more often, and topics answered correctly less often.

Which topics suit microlearning?

What should managers measure?

Completion rate is necessary but not sufficient. A lesson showing as "done" doesn't prove the knowledge has stuck. Meaningful indicators for managers and nurse educators are:

1. Completion rate: By department and shift; teams falling behind should be visible early.
2. Correct-answer rate on review questions: Comparing the first attempt with a review months later gives an idea of retention.
3. Distribution of weak topics: If a whole department struggles with the same question, it may point to a problem in the content or in practice.
4. Participation after notifications: Shows at which times reminders work and helps improve the notification schedule.

Checklist for getting started

• 5–10 topics suited to microlearning have been chosen, with a one-sentence learning objective written for each.
• For each topic, a pool of questions asked in different ways, with feedback, has been prepared.
• Content and questions have been reviewed by the relevant expert.
• The review schedule is set, with a rule that topics answered incorrectly come back more often.
• Notifications are adjusted to shift patterns.
• The indicators to measure, and who will review the report and how often, have been decided.
• After piloting in one department for a few months, a decision will be made on wider rollout.

Sources

• Cepeda NJ, Pashler H, Vul E, Wixted JT, Rohrer D. Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 2006.
• Roediger HL, Karpicke JD. Test-enhanced learning: taking memory tests improves long-term retention. Psychological Science, 2006.
• Larsen DP, Butler AC, Roediger HL. Test-enhanced learning in medical education. Medical Education, 2008.
• Kerfoot BP et al. Durable improvements in prostate cancer screening from online spaced education: a randomized controlled trial. American Journal of Preventive Medicine, 2010.
• Kerfoot BP. Adaptive spaced education improves learning efficiency: a randomized controlled trial. The Journal of Urology, 2010.

Microlearning with ATP MedAI

ATP MedAI's mobile app offers microlessons of about 5 minutes that can be completed between shifts, along with push reminders. The personal learning plan is built weekly based on role, department, exam results and knowledge gaps, and weak topics come back through spaced repetition. Strengths and weaknesses are judged against the organization's average on each topic, and every recommendation is shown with its reasoning. Completion rates by department and the teams falling behind can be monitored on the manager dashboard. To see how this approach could fit into your own training plan, you can request a demo.

ATP MedAI Editorial Team
This article was prepared for general information. If you spot an error or omission, let us know and we'll correct it.