Although research indicates cognitive (Wu et al., 2013) and social (Cummins, 2017) benefits of drawing on students’ whole language repertoires, and vocabulary experts emphasizing the merit of using L1s to establish initial form-meaning mapping (Schmitt, 2008), classroom-based research on what teaching/learning practices may be effective in multilingual classrooms is scarce.
We present results from an intervention comparing the effects on vocabulary learning of three week-long teaching/learning conditions: English Only (EO); English and Swedish (E&S); and English, Swedish and any Other language(s) (E&S&O) that learners know. Participants are learners (age 15-16) in six intact classes.
Teaching materials for each of the three conditions comprised (1) a text, including 12 controlled and piloted English target words, (2) vocabulary exercises and (3) vocabulary lists covering the target words, the latter being either EO, E&S, or E&S&O. We used a counter-balanced, within-subject design, featuring pretest–3 x treatment–immediate posttest–delayed posttest. The vocabulary test format targeted meaning recall knowledge at all test times, with answers in any language allowed. Learners were instructed to follow the imposed condition each week.
Gain score analyses (ANOVAs) of three classes showed that all performed better in the E&S condition, irrespective what week this treatment condition took place. Thus, learning English vocabulary with Swedish translation equivalents yielded higher gain scores for all classes. We will present results for all six classes (Total N = c. 120), and factors such as language proficiency, language dominance, preferred teaching/learning approach, and perceived learning will be incorporated as covariates in the analysis.