Learning from Errors: Deliberate Errors Enhance Learning

Deliberate error is an effective learning strategy, comparable to retrieval practice,
However, learners often experience metacognitive illusions regarding both strategies,
making their adoption challenging, particularly for deliberate errors. This study
compares the effectiveness of deliberate errors (S – D) with retrieval practice (S – T)
and restudy (S – S) across three experiments: Experiment 1 focused on immediate
testing, while Experiment 2 examined delayed testing. In Experiment 3, the impact of
deliberate errors (S – D), retrieval practice with feedback (S – T – S – T), and restudy
(S – S – S – S) was assessed in both immediate and delayed tests. Results showed no
significant difference between deliberate errors and retrieval practice in immediate tests,
regardless of whether retrieval practice included feedback (Experiment 3) or not
(Experiment 1). However, deliberate error consistently outperformed restudy. In
delayed tests, deliberate errors significantly outperformed retrieval practice, whether
with or without feedback, and both strategies were superior to restudy. These findings
suggest that while both strategies may share similar mechanisms for short-term memory
retention, deliberate error may employ unique mechanisms that enhance long-term
memory retention, leading to superior results over extended intervals. This study
provides empirical evidence for the application of deliberate errors, retrieval practice,
and restudy.