Extended Data Table 1 Descriptive statistics and estimates of internal consistency for PCL-S across waves of data collection for the full sample and PTSD cases

From: A 20-year longitudinal cohort study of post-traumatic stress disorder in World Trade Center responders

  1. n = sample size; SD = standard deviation; min = minimum observed value; max = maximum observed value; Skew = the third central moment divided by the cube of the standard deviation; Kurtosis = the fourth central moment divided by the fourth power of the standard deviation minus 3 (a.k.a. excess kurtosis); α = Cronbach’s alpha; ωT = Omega total; ωH = Omega hierarchical.
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