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Table 4 Descriptive statistics for continuous variables

From: Personality, competencies, and life outcomes: results from the German PIAAC longitudinal study

  Mean Standard deviation Range No. items Reliability estimate
Extraversion 5.03 1.15 1–7 (totally disagree–totally agree) 3 .69b
Ageeableness 5.44 .95 1–7 (totally disagree–totally agree) 3 .41b
Conscientiousness 5.78 .94 1–7 (totally disagree–totally agree) 3 .59b
Emoional Stability 4.17 1.26 1–7 (totally disagree–totally agree) 3 .62b
Openness 4.83 1.17 1–7 (totally disagree–totally agree) 3 .56b
Numeracya 280.48 49.53 76–446 points   .93c
Literacya 277.55 45.42 113–406 points   .93c
Age 43.20 13.87 19–67 years 1  
Income 2610.99 2759.98 EUR 0–86.666.67 1  
Health 3.78 .96 1–5 (very good–bad) 1  
Life satisfaction 7.40 1.27 1–10 (totally unsatisfied–totally satisfied) 12 .81b
  1. aBased on first plausible value
  2. bCronbach’s alpha
  3. cEstimated as the square root of the correlation between literacy and numeracy