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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: Lang Learn Dev. 2021 Aug 23;18(3):294–309. doi: 10.1080/15475441.2021.1954929

Table 2.

Demographic and Language Background of Thai and American Children, Mothers, and Fathers

Children Mothers Fathers
Thai Mean (SE) American Mean (SE) Thai Mean (SE) American Mean (SE) Thai Mean (SE) American Mean (SE)
Age (years) 4.43 (0.08) 4.37 (0.07) 37.66 (0.95) 37.16 (1.20) 40.03 (1.12) 39.01 (1.36)
Education (years) - - 18.55 (0.67) 18.00 (0.77) 19.20 (1.33) 17.81 (0.68)
Age of Thai acquisition (years) 0.17 (0.15) - 1.60 (0.40) - 1.78 (0.39) -
Age of English acquisition (years) 1.40 (0.23) 0 (0) *** 8.91 (0.95) 0.17 (0.12) *** 9.33 (1.50) 0.47 (0.19) ***
Age of other language acquisition (years) - 1.23 (0.45) - 11.56 (1.26) - 13.50 (0.50)
Current exposure to Thaia 91.19 (1.54) - 91.43 (1.61) - 86.90 (2.70) -
Current exposure to Englisha 8.81 (1.54) 99.50 (0.22) *** 8.57 (1.61) 98.81 (0.43) *** 11.35 (2.38) 99.56 (0.22) ***
Current exposure to other languagea - 0.50 (0.22) - 1.17 (0.44) - 0.38 (0.18)
Thai proficiencyb 5.24 (0.30) - 9.13 (0.19) - 9.03 (0.24) -
English proficiencyb 2.44 (0.35) 6.17 (0.28) *** 4.25 (0.36) 9.46 (0.13) *** 5.44 (0.39) 9.42 (0.25) ***
Other language proficiencyb - 0.92 (0.16) - 3.70 (0.54) - 3.83 (0.50)
Thai/English receptive vocabulary (PPVT) 65.14 (4.55) 72.67 (2.67) 195.57 (0.85) 193.14 (1.46) - -
Thai/English expressive vocabulary (EVT) 45.95 (1.37) 49.62 (1.57) 148.24 (2.94) 155.33 (3.35) - -

Note.

a

Exposure was reported in terms of percentage per day.

b

Proficiency was averaged across speaking, understanding, and reading domains, measured using the LEAP-Q, on a 0–10 scale. Children’s proficiency was reported by their mothers, whereas mothers’ and fathers’ proficiencies were self-reported.

p < .10,

***

p < .001.