Who He Was:
Stephen Pit Corder (1918–1990) was a British applied linguist based at the University of Edinburgh, and one of the most important historians and theorists of SLA in its formative period. His 1967 paper, “The Significance of Learners’ Errors,” is one of the most cited articles in the history of applied linguistics and is credited with founding the field of error analysis as a scientific discipline.
In-Depth Explanation
The paradigm shift Corder created:
Before Corder, errors in second language learning were viewed primarily as:
- Evidence of bad habits formed by L1 interference
- Failures to be corrected through drilling (audio-lingual theory)
- Problems caused by insufficient practice or negative transfer
Corder’s 1967 paper argued that this was fundamentally wrong. Learner errors are:
- Significant — they tell us something systematic about how learners are processing the target language
- Systematic — errors are not random; they reflect an internal, rule-governed system
- Transitional competence — the learner’s state of knowledge at any point is a complete linguistic system of its own, not simply deficient target-language knowledge
This reframing was the conceptual foundation for Larry Selinker’s concept of interlanguage (1972), which Corder’s work directly enabled.
Error analysis methodology:
Corder distinguished three types of learner deviations:
- Errors: Reflect gaps in competence — the learner doesn’t yet know the rule (systematic)
- Mistakes: Reflect performance failures — the learner knows the rule but slips (sporadic)
- Lapses: Failures of attention or memory, not competence
This distinction set the agenda for error analysis research: only errors were systematically meaningful data about interlanguage development.
Built-in syllabus:
Corder also proposed that learners have a built-in syllabus — an internal developmental program that determines what they are ready to acquire, largely regardless of what the teacher presents. This anticipates both the natural order hypothesis and processability theory.
Idiosyncratic dialects:
In his 1971 paper “Idiosyncratic Dialects and Error Analysis,” Corder described learner language not as deficient English (or French, or Japanese) but as an idiosyncratic dialect — a variety with its own internal logic. This framing was essential for the humanizing, developmental turn in SLA research.
Contribution to applied linguistics as a discipline:
Corder’s 1973 book Introducing Applied Linguistics was a landmark text that helped define applied linguistics as an academic discipline distinct from theoretical linguistics, and established error analysis alongside contrastive analysis as the two dominant methodological approaches to learner language.
History
- 1967: “The Significance of Learners’ Errors” published in International Review of Applied Linguistics — transforms how errors are conceptualized in SLA.
- 1971: “Idiosyncratic Dialects and Error Analysis” further develops the systematic-dialect view of learner language.
- 1973: Introducing Applied Linguistics consolidates Corder’s influence on the field.
- 1978–1981: Later work on discourse and the role of language transfer; Corder becomes less prominent as focus shifts to Selinker’s interlanguage paradigm.
- 1990: Corder dies; his 1967 paper remains one of the most-cited in applied linguistics history.
Criticisms
Corder’s error analysis paradigm, while transformative for the field, was subject to several early criticisms that shaped its evolution. The most significant was the difficulty of reliably distinguishing between “errors” (systematic, competence-based) and “mistakes” (performance-based slips) — a distinction Corder himself proposed but which proved difficult to operationalize in practice. Without reliable procedures for this classification, error analysis studies risked attributing systematic significance to random performance variation.
Error analysis was also criticized for its inherent focus on what learners get wrong, potentially missing the full picture of interlanguage development. Schachter (1974) demonstrated that learners avoid structures they find difficult, meaning error analysis systematically undercounts problems with avoided forms — the “avoidance strategy” critique. This limitation led to the development of contrastive analysis and interlanguage studies that examine the full range of learner production, not just errors. Finally, critics noted that error analysis provides a cross-sectional snapshot rather than a developmental trajectory, making it less suited to studying the dynamic, evolving nature of language acquisition.
Practical Application
For Japanese learners:
- Corder’s framework is a powerful reframe for how you interpret your own errors: your Japanese errors are evidence of an active, developing interlanguage — not failure
- Analyze your own error patterns: Are you making the same type of error consistently? That’s a systematic interlanguage rule worth targeting explicitly
- Don’t confuse mistakes (slips you can self-correct) with errors (gaps in your competence); correcting yourself immediately after a slip is useful self-monitoring
- Understanding your “built-in syllabus” means accepting that some structures will naturally emerge later — pushing them before developmental readiness produces superficial, not acquired, performance
Related Terms
See Also
Research
- Corder, S. P. (1967). The significance of learners’ errors. International Review of Applied Linguistics, 5(4), 161–170. [Summary: The founding paper of modern error analysis in SLA — argues that learner errors are systematically significant evidence of internal language processing, not merely failures to be corrected, and proposes the concept of a learner-internal “built-in syllabus.”]
- Corder, S. P. (1971). Idiosyncratic dialects and error analysis. International Review of Applied Linguistics, 9(2), 147–160. [Summary: Extends the 1967 paper by proposing that learner language constitutes a systematic idiosyncratic dialect with its own internal rules — a direct precursor to Selinker’s interlanguage concept.]