Language learning activities involving time-pressured repetition of similar content have been shown to facilitate improvements in fluency. However, concerns have been voiced about whether these gains might be offset by reduced levels of grammatical accuracy. This descriptive study tracked the oral proficiency of 32 Japanese university students enrolled in English as a foreign language (EFL) classes over one academic semester during which they regularly completed 3/2/1 fluency development activities. Measures of complexity, accuracy, and fluency (CAF) were analysed to investigate whether any developmental patterns could be identified. The results indicated that over the semester, the students made small, but significant gains in two fluency measures, the mean length of pause and the phonation/time ratio. Despite the relatively small size of the gains, expert ratings of perceived fluency suggested that these fluency improvements were detectable to the human ear. Furthermore, a significant relationship emerged between three of the four CAF measures over the semester. These results suggest that the activities moderately impacted students’ speaking fluency without negatively affecting accuracy or complexity levels; however, further longitudinal research is needed to determine which factors might influence this development, as class performance measures did not account for any of the variation detected.
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