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Independent confirmation that vocabulary in use unfolds across levels of perfor mance as expected can contribute to a more complete understanding of validity in standardized English language tests. This study examined the relationship between Lexical Frequency Profiling (LFP) measures and rater judgements of test-takers’ overall levels of performance in the Speaking and Writing modules of the CELPIP-General test. In particular, the potential of measures such as lexi cal stretch and number of frequency bands accessed was examined. Randomized quota sampling from previously rated test-taker responses resulted in 200 speak ing samples and 200 writing samples being compiled to create corpora of 211,602 running words and 70,745 running words respectively. Pearson r was used to examine the relationships between the LFP measures and rater judgements of CELPIP levels. Results point to significant correlations, with increasing CELPIP levels of performance generally accompanied by test-takers’ increasing ability to produce greater numbers of words, deploy a greater variety of words, rely less on high-frequency vocabulary, tap into mid-frequency vocabulary, and access a greater number of frequency bands. These results underline the contribution of independently obtained lexical measures toward a fuller understanding of concur rent validity in standardized English language proficiency testing. La confirmation independante que le vocabulaire d’usage se repand sur plusieurs niveaux de performance tel que prevu peut contribuer a une meilleure interpreta - tion de la validite des tests standardises de langue anglaise. Ce e etude a examine le rapport entre les mesures de profilage de la frequence lexicale et les evalua - tions de la performance globale des eleves aux modules de parole et de redaction du Programme canadien d’evaluation du niveau de competence linguistique en anglais (CELPIP). Plus precisement, on a examine le potentiel des mesures telles l’etendue lexicale et le nombre de bandes de frequences a eintes. L’echantillon - nage par quota aleatoire de reponses d’eleves deja evaluees a entraine la formation de 200 echantillons de parole et 200 echantillons de redaction representant deux corpora, un de 211 602 mots lies et l’autre de 70 745 mots lies. On a employe le coe cient de correlation de Pearson pour examiner les rapports entre les mesures de la frequence lexicale et les evaluations en fonction des niveaux du CELPIP. Les resultats devoilent des correlations signi catives entre, d’une part, les meilleures performances au CELPIP et, d’autre part, une capacite a produire une quantite  et une variete plus importantes de mots; a moins recourir aux mots les plus frequents; a puiser dans du vocabulaire a frequence moyenne; et a acceder a un plus grand nombre de bandes de frequence. Ces resultats soulignent la contribution des mesures lexicales obtenues independamment a la comprehension de la validite concourante des evaluations standardisees des competences linguistiques en anglais.

tesl canada journal

The Relationship Between Lexical Frequency Profiling Measures and Rater Judgements of Spoken and Written General English Language Proficiency on the CELPIP-General Test