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Table 2 Contingency table for German NA and PISA (total and percentage in PISA with 95% confidence interval)

From: Proficient beyond borders: assessing non-native speakers in a native speakers’ framework

  PISA
I II III IV V Overall
 NA
 A1
  Total 32 0 0 0 0 32
 % in PISA 100.0 0.0 0.0 0.0 0.0 100.0
  (95% CI) (89.1100.0) (0.0–10.9) (0.0–10.9) (0.0–10.9) (0.0–10.9)  
 A2
  Total 105 42 6 3 0 156
  % in PISA 67.3 26.9 3.9 1.9 0.0 100.0
  (95% CI) (59.3–74.6) (20.134.6) (1.4–8.2) (0.4–5.5) (0.0–2.3)  
 B1
  Total 44 59 58 17 1 179
  % in PISA 24.6 33.0 32.4 9.5 0.6 100.0
  (95% CI) (18.5–31.6) (26.1–40.4) (25.6–39.8) (5.6–14.8) (0.0–3.1)  
 B2
  Total 3 8 14 30 3 58
  % in PISA 5.2 13.8 24.1 51.7 5.2 100.0
  (95% CI) (1.1–14.4) (6.1–25.4) (13.9–37.2) (38.2–65.0) (1.1–14.4)  
 C1
  Total 0 0 1 1 0 2
  % in PISA 0.0 0.0 50.0 50.0 0.0 100.0
  (95% CI) (0.0–84.2) (0.0–84.2) (1.3–98.7) (1.3–98.7) (0.084.2)  
 Overall
  Total 184 109 79 51 4 427
  % in PISA 43.1 25.5 18.5 11.9 0.9 100.0
  (95% CI) (38.3–47.9) (21.5–29.9) (14.9–22.5) (9.0–15.4) (0.3–2.4)