The mediating effect of context variation in mixed practice for transfer of basic science

Area of Science:

• Cognitive Psychology
• Educational Psychology

Background:

• Learning transfer, applying learned concepts to new problems, is crucial but challenging.
• Mixed practice (interleaving concepts) generally outperforms blocked practice (separating concepts) for transfer.
• The impact of practice context diversity on transfer remains less understood.

Purpose of the Study:

• To investigate how single versus multiple practice contexts influence transfer performance.
• To examine the combined effects of practice context diversity and practice modality (blocked vs. mixed) on near and far transfer.
• To determine optimal practice conditions for enhancing learning transfer in novices.

Main Methods:

• A 2x2 factorial design study with 42 first-year psychology students.
• Participants learned three physiological concepts under conditions of single or multiple practice contexts and blocked or mixed practice.
• Practice context was defined by the number of organ systems (one vs. two) used per concept.

Main Results:

• Practicing with two organ systems (multiple contexts) significantly benefited far transfer performance compared to a single context, irrespective of practice modality.
• The single context mixed practice group exhibited the lowest far transfer scores (large effect size, Cohen's d = 0.81).
• A significant interaction between transfer type (near/far) and organ system context was observed.

Conclusions:

• Exposure to multiple practice contexts is critical for effective learning transfer, particularly for far transfer (unfamiliar situations).
• Even with mixed practice, using only a single practice context severely hinders transfer performance.
• Novices benefit most from training that incorporates both multiple practice contexts and mixed practice to maximize transfer.