Response times (RTs) collected via Persian and English Sentence-Picture Verification (SPV) tasks
Description
This study sought to investigate the relative contributions of L1-based vs. L2-based perceptual simulation abilities to oral narrative comprehension in bilingual children. Three data view files of SPSS have been shared. The first file shows the English SPV single RTs after the removal of errors and outliers. And the second file provides the Persian SPV single RTs after the removal of errors and outliers. All response times on errors have been removed via the filtering feature of SPSS and outlier removal has been carried out based on absolute cutoffs. Response times smaller than 300 ms were deleted as they were believed to be due to anticipation or boredom. Response times greater than 3000 ms were removed as they were attributed to absence of perceptual simulation. Finally, the third file presents the data view of multiple linear regression with English and Persian SPV mean RTs as the predictors and oral narrative test scores as the outcome variable. The results showed that the regression equation model was statistically significant and roughly 26% of the variance in the outcome variable could be accounted for by the two predictors, collectively, F(2,39) = 6.86, p < .05. Looking at the unique individual contributions of the predictors, English SPV response time (β = -.48, t = -2.59, p = .013) contributed significantly to the model, Persian SPV response time (β = -.03, t = -.19, p = .844), however, was not found to be a significant predictor of oral narrative comprehension in the bilingual children (See Table 2). Thus, for every 1 standard deviation of increase in English SPV response time, oral narrative comprehension will decrease by .48 standard deviations. It can be inferred from the results that oral narrative comprehension is impacted by L2-based perceptual simulation, but L1-based perceptual simulation does not influence oral narrative comprehension. This may suggest that the cross-linguistic effect of L1 on L2 has not been strong enough to render L1-based perceptual simulation a significant predictor of oral narrative comprehension.
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Steps to reproduce
The RTs as indicators of L1-based and L2-based perceptual simulation abilities were collected via Persian and English Sentence-Picture Verification tasks. The tasks were adopted from Engelen et al. (2011) and were constructed and run using E-Prime 3.0 (3.0.3.80) stimulus presentation software (Schneider et al., 2002).