Available second language research indicates extensive reading programs are generally more effective than systematic vocabulary instruction using decontextualized exercises¶

Claim · All claims
Evidence · 1 study · causal r? · q2
Currency · newest study 1996 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · not reviewed by a person

Subclaims¶

q2 i? Second language research indicates extensive reading programs are generally more effective than systematic vocabulary instruction using decontextualized exercises. → T. Sima Paribakht and Marjorie Wesche 1996

Evidence¶

T. Sima Paribakht and Marjorie Wesche 1996¶

T. Sima Paribakht and Marjorie Wesche. (1996). Vocabulary enhancement activities and reading for meaning in second language vocabulary acquisition. Second Language Vocabulary Acquisition: A Rationale for Pedagogy, Cambridge University Press. https://doi.org/10.1017/CBO9781139524643.013

q2 · i? · causal · r?

The chapter's introduction reviews prior second language research, citing Elley and Mangubhai (1983) and Krashen (1989), and states that "extensive reading programs are generally more effective than systematic vocabulary instruction using decontextualized exercises." No effect sizes are reported for this comparison.

"Second language research on this issue is sparse, but what there is indicates that extensive reading programs are generally more effective than systematic vocabulary instruction using decontextualized exercises"

Discussion¶

Learner Variables¶

• Reading and Language — outcome: instruction changes it
• Vocabulary — outcome: instruction changes it

Related Claims¶

• Incidental vocabulary exposure produces reliable learning, but learners pick up only a small share of the unknown words they meet — the general claim this finding bears on, with the studies behind it
• L2 learners pick up vocabulary incidentally from meaning-focused input, with reading the most-studied mode and listening yielding similar proportions of words learned — possibly the same claim (merge candidate)
• First language evidence shows extensive reading for meaning leads to vocabulary acquisition over time, probably accounting for most L1 vocabulary growth beyond the first few thousand common words — a broader claim this one bears on
• Pairing Contextual Encounters With Explicit Instruction Produces Stronger Vocabulary Outcomes Than Either Alone — reports the opposite
• Vocabulary Knowledge Grows Incrementally With Repeated Encounters In Varied Contexts — related
• Vocabulary-focused programs are probably insufficient to accelerate vocabulary development and close the vocabulary gap — related
• Prior vocabulary knowledge moderates vocabulary learning gains in an extensive reading program, with high-level learners gaining more than intermediate and low-level learners — related
• Vocabulary learning gains in Term 2 of the extensive reading program were consistent with those from Term 1 — related