What question did this study set out to answer?

To provide a comprehensive overview of 30 years of research in processing instruction within second language acquisition.

February 12, 2026Education Sciences0 citationsOpen Access

A Review of Thirty Years of Research on Processing Instruction

APAmin Pouresmaeil XWXin Wang

Puntos clave

To provide a comprehensive overview of 30 years of research in processing instruction within second language acquisition.
Reviewed theoretical foundations of processing instruction.
Analyzed empirical studies across six distinct research strands.
Synthesized key findings from each research strand.
Processing instruction is a prominent area in second language acquisition research.
Structured input activities significantly contribute to the effectiveness of processing instruction.
Key findings provide insights into the theoretical and practical implications of processing instruction.

Resumen

Dozens of studies published on processing instruction (PI) make it one of the highly investigated areas within the field of second language acquisition (SLA). This review article provides an overview of 30 years of research in this area. The article first provides a brief account of the theoretical underpinnings of PI, its features, and the guidelines for devising structured input (SI) activities, which are the main causative factor accounting for the effects of PI. It then proceeds with a review of empirical studies carried out across six strands of research on PI and offers a detailed synthesis of the key findings emerging from each strand. The article ends with a general conclusion based on the findings of research to date and outlines directions for future research.

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