% A% 30 20- 10- 0 30 20- 10- + ♦ Data A 6 12 18 Months Exposure to English Language Data C 18 6 12 Months Exposure to English Language 0 24 24 % Verbe A% 8 20- 10- 0 30 20 10- 0 0 6 12 18 Months Exposure to English Language Data B ◆ International Adoptees Monolingual Infants 8 O 8 24 Data D 6 12 18 Months Exposure to English Language 24
Question
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Scenario 9.1 is based on and presents results consistent with the following studies:
Snedeker, J., Geren, J., & Shafto, C. L. (2012). Disentangling the effects of cognitive development and linguistic expertise: A longitudinal study of the acquisition of English in internationally-adopted children. Cognitive Psychology, 65(1), 39–76. doi:10.1016/j.cogpsych.2012.01.004
Snedeker, J., Geren, J., & Shafto, C. L. (2007). Starting over: International adoption as a natural experiment in language development. Psychological Science, 18(1), 79–87. doi:10.1111/j.1467-9280.2007.01852.x
Language development occurs in orderly stages, beginning with one-word utterances and progressing to two-word utterances, simple sentences containing
(Scenario 9.1) Figure 9.1 shows the number of verbs, expressed as a percentage of total English vocabulary, between 6 and 24 months of exposure to the English language in internationally adopted preschoolers from China and monolingual infants. Four fabricated sets of data (labeled A–D) are shown. Which data set provides the MOST support for the contention that cognitive factors play a role in language development?
A) Data set B
B) Data set C
C) Data set D
D) Data set A
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