Skip to main content
. Author manuscript; available in PMC: 2016 Aug 14.
Published in final edited form as: Biling (Camb Engl). 2013 Apr 4;18(1):79–89. doi: 10.1017/S1366728913000126

Table 1.

Descriptive statistics. Square brackets indicate statistics based on the imputed dataset.

Variable N Missing (%) Mean SD Min Max
Age in years 106 0 63.44 8.02 50 84
Years of Education 106 0 13.1 2.74 8 18
Years lived in the U.S. 106 0 45.39 15.63 4 84
Age started learning English 106 0 13.54 9.99 1 50
Age started using English 106 0 16.8 12.9 2 56
MMSE 106 0 28 1.49 25 30
Self-rated health 106 0 2.55 1.01 1 5
Self-rated English proficiency 106 0 2.89 1.68 1 7
Self-rated Spanish proficiency 106 0 1.99 1.56 1 7
Self-rated Language use 106 0 4.01 1.31 1 7
Language use type 106 0 1.92 1.78 0 6
Language proficiency type 106 0 1.88 1.44 0 6
Inhibition 104 [106] 1.9 [0] 45.09 [45.07] 41.09 [40.72] −38.14 [−38.14] 165.7 [165.7]
Working Memory 106 0 2.56 0.88 0.5 5
Attention 95 10.4 89.38 59.19 3 299
Attention (square root of) 95 [106] 10.4 [0] 8.96 [9.17] 3.02 [2.95] 1.73 [1.73] 17.29 [17.29]
Speed (ms) 106 0 595.2 122.2 367.1 946

Note: MMSE: Mini-Mental Status Examination; Self-rated health: 1 = Excellent, 5 = Poor; Self-rated English proficiency and Self-rated Spanish proficiency: 1 = Native-like knowledge, 7 = Very limited knowledge; Self-rated Language use: 1 = Spanish only, 4 = Equal, 7 = English only; Language use type and Language proficiency type: 0 = balanced, 6 = dominant (see text for description); Inhibition: response-time difference (in ms) between the congruent and incongruent conditions of the Simon task; Working Memory: span length; Attention: response-time difference (in ms) between conditions A and B of the Trail Making test.