The null UK trial result contrasts with two US retrospective cohort studies, possibly due to shorter duration and lower intensity and to control groups already teaching foreign languages¶
Claim · All claims
Evidence · 1 study · causalr2·q2
Currency · newest study 2017 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? The authors attribute the differing results to the shorter length and reduced intensity of this intervention (18 weeks/60 minutes per week vs. one to three years/minimum 150 minutes per week) and to a control group that often included some foreign language teaching. → Wiggins et al. 2017
Evidence¶
Wiggins et al. 2017¶
Meg Wiggins, Constanza Gonzalez Parrao, Helen Austerberry and Anne Ingold. (2017). Foreign Language Learning in Primary School: Evaluation report and executive summary. Education Endowment Foundation. https://eric.ed.gov/?id=ED581156
q2 · i? · causal · r2
Authors' interpretation (e) comparing this evaluation with two large-scale retrospective cohort studies in the United States (Rafferty, 1986; Taylor-Ward and LaFayette, 2010) that showed an impact of foreign language learning on English language attainment. The article offers this as a possible explanation, not a tested result.
"This variation may be a result of the shorter length and reduced intensity of this intervention compared to those studied in the US (18 weeks/60 minutes per week vs. one to three years/minimum 150 minutes per week)."
Discussion¶
Related Claims¶
- No prior RCTs existed on foreign-language-teaching effects on English literacy, and the trial was designed to compare FLL against existing school language provision rather than no language teaching — related
- Intervention duration does not significantly predict GenAI writing effect sizes, which the authors attribute to limited temporal diversity in the evidence base — related
- The authors interpret the null between-group result as reflecting the program's short duration and students' lack of experience with critical thinking tasks — related
- The authors judge insufficient instructional intensity (dosage) as the primary factor behind the null result of learning strategies instruction in adult education — related
- Most schools were already teaching metacognitive and reflective skills similar to those encouraged by ReflectED, which may have limited the programme's additional impact — related
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