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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: J Child Lang. 2015 Jun 5;43(4):760–783. doi: 10.1017/S0305000915000252

TABLE I.

Mean receptive vocabulary scores on the CDI and CCT for monolinguals and bilinguals

Monolingual (N = 59) Bilingual (N = 50)


Variables Mean SD Range Mean SD Range F-test Significance
CDI Total Vocabulary 197·05 76·37 43·00–387·00 324·70 153·70 63·00–693·00 14·59 p < ·001
CDI Conceptual Vocabulary 236·46 91·89 50·00–434·00 2·13 p = ·148
CDI L1 185·88 90·43 18·00–360·00 1·64 p = ·204
CDI L2 145·68 93·11 10·00–406·00 4·94 p = ·028
CCT Total Vocabulary 16·36 6·93 2·00–32·00 20·48 9·72 4·00–41·00 2·27 p = ·135
CCT Conceptual Vocabulary 19·98 9·37 4·00–40·00 1·85 p = ·177
CCT L1 11·10 6·58 1·00–27·00 9·39 P = ·003
CCT L2 9·66 5·59 2·00–26·00 21·17 p < ·001
Reaction Time L1 (ms) 4165·12 944·31 2282·00–6023·00 3623·28 896·37 2141·00–6027·00 2·83 p = ·096
Reaction Time L2 (ms) 3676·46 970·43 1284·50–6023·00 2·79 p = ·098