Evidence & Methodology

LinguaLive Research

Evidence maps and transparent methods that separate useful findings from overbroad language-learning claims.

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All Research Briefs

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Research5 min read

Automated Speech Assessment Fairness: Risk and Validation Map

An automated speaking score is not fair merely because it is consistent or correlates with an average human rating. A defensible system must define the…

VP
Vlad Podoliako
2026-08-05
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Research5 min read

Corrective Feedback Timing in Speaking Practice: Evidence Brief

There is no evidence-based rule that every speaking error should be corrected immediately or that all feedback should wait until the end. Timing interacts with…

VP
Vlad Podoliako
2026-08-05
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Research5 min read

Cost per Speaking Hour: A Transparent Comparison Model

Language programmes should compare cost per completed learner speaking hour, not price per seat, scheduled class hour, or app subscription. A class may last 60…

VP
Vlad Podoliako
2026-07-26
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Research5 min read

Foreign-Language Speaking Anxiety: Evidence Map and Practice Implications

Foreign-language speaking anxiety is a context-sensitive barrier that can affect participation, attention, willingness to communicate, and self-evaluation. It…

VP
Vlad Podoliako
2026-07-26
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Research10 min read

Evaluating Multilingual ASR on Learner Speech: A Methods Brief

Evaluate automatic speech recognition on learner speech with a frozen, held-out test set for every target language and use case, then report transcription…

VP
Vlad Podoliako
2026-08-05
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Research6 min read

Measuring Oral Fluency: Metrics and Interpretation Methods Brief

Oral fluency cannot be represented honestly by one speaking-speed number. Research commonly separates observable utterance fluency into speed, breakdown, and…

VP
Vlad Podoliako
2026-08-05
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Research5 min read

IELTS, TOEFL, ACTFL, and CEFR Speaking Frameworks Compared

CEFR and ACTFL are broad proficiency frameworks; IELTS Speaking and TOEFL iBT Speaking are test-specific score systems. They overlap in the ability to describe…

VP
Vlad Podoliako
2026-07-26
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Research6 min read

Speaking Practice Transfer: A Replicable Evaluation Protocol

A speaking intervention shows transfer when learners improve on a new but construct-relevant communication task, not only on the prompt, script, or feedback…

VP
Vlad Podoliako
2026-08-05
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Research6 min read

Technology-Mediated Pronunciation Feedback: Rapid Evidence Map

Technology-mediated pronunciation feedback can help learners notice and practise specific speech features, but the evidence is strongest for bounded training…

VP
Vlad Podoliako
2026-08-05
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Research5 min read

What Language-App Efficacy Studies Actually Measure

The phrase “this language app works” is incomplete. A study may show that a selected group improved on reading and listening items after completing a particular…

VP
Vlad Podoliako
2026-07-26

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