Validity of self-ratings for determining language proficiency : evidence from Russian-English bilingual adults
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Narrative measures derived from English and Russian tell and retell narrative language samples of 20 L1-Russian, L2-English bilingual adults were correlated with their overall, speaking and verbal proficiency self-ratings to verify the validity of the selfrating scale for both languages. In English, measures of fluency, productivity and grammaticality were moderately correlated with speaking proficiency self-ratings. Strength of correlations with tell versus retell narratives varied by category of narrative measure. For Russian, correlations were not significant due to ceiling effects in proficiency. The effects of modifications to narrative measures were considered, showing that correlations with temporal fluency and productivity increased as mazes and fillers were excluded, while correlations with grammaticality increased as article omission errors were excluded. Sources of variation in self-ratings and narrative measures are described, and recommendations are presented for an alternative narrative elicitation method.