Comparing Adaptive and Random Spacing Schedules during Learning to Mastery Criteria

Area of Science:

• Cognitive Psychology
• Educational Technology
• Learning Sciences

Background:

• Traditional learning often uses fixed spacing, which may not be optimal for individual learning rates.
• Previous research indicates adaptive spacing based on response times improves learning.
• Limited item presentations are common, raising questions about effectiveness with mastery-based learning.

Purpose of the Study:

• To investigate if adaptive practice benefits learning until objective mastery criteria are met.
• To determine if mastered items dropping out affects adaptive learning benefits.
• To compare adaptive and non-adaptive spacing under conditions of mastery and dropout.

Main Methods:

• Experiment 1: Compared random presentation to adaptive spacing using the ARTS system with mastery but no dropout.
• Experiment 2: Compared adaptive spacing to random schedules with both mastery and dropout.
• Utilized response times to dynamically adjust spacing intervals for learning items.

Main Results:

• Adaptive spacing significantly improved retention compared to random presentation in Experiment 1.
• Adaptive spacing demonstrated clear learning advantages over random schedules in Experiment 2, even with dropout.
• Results indicate adaptive practice is superior to random schedules under both mastery and dropout conditions.

Conclusions:

• Adaptive spacing, particularly when informed by response times, enhances learning outcomes.
• The benefits of adaptive practice persist even when learning continues to mastery and mastered items are removed.
• Adaptive Response-time-based Sequencing (ARTS) offers a more effective learning strategy than fixed or random schedules.