Data and Analysis

This page provides links to folders containing the data and analysis scripts that underpin the research findings we present in our book, 'Components of Language Proficiency: The case of adolescent second language learners in schools in England'. If you have any difficulties accessing the folders, please contact Dr. Amber Dudley (amber.dudley@york.ac.uk) and Prof. Emma Marsden (emma.marsden@education.ox.ac.uk).

Please note: Access to the links below will be made available from July 2026 onwards. 

Chapter 3: The ComLaP Study

Chapters 4–6: The 'Knowledge' Chapters

In the 'knowledge' chapters, we explored the components of language knowledge in French and Spanish, in terms of vocabulary (Chapter 4), grammar (Chapter 5), and sound–symbol correspondences (Chapter 6). 

Chapters 7-11: The 'Proficiency' Chapters

In the 'proficiency' chapters, we looked at the components of language proficiency in French and Spanish. 

Chapters 7 (reading) and 9 (listening) and Study 2 of Chapters 10 (writing) and 11 (speaking) focused on the external correlates of language proficiency, exploring the following research questions: 

• • RQ1a: To what extent is SSC knowledge associated with proficiency in a specific skill?
    Note: The data and analysis scripts can be founded in the folder for SSC knowledge.

  • RQ1b: To what extent is receptive and productive vocabulary and grammar knowledge associated with proficiency in a specific skill?

  • RQ2: To what extent are motivation and skill-specific self-efficacy associated with proficiency in a specific skill, relative to linguistic knowledge? 

  • RQ3: To what extent are the related skills associated with proficiency in a specific skill?

Chapter 8 focused on lexical inferencing success in French and Spanish and its predictors. 

Section 1 of Chapters 10 (writing) and 11 (speaking) focused on the internal correlates of language proficiency, exploring the extent to which the individual dimensions of an analytic scale were interrelated.