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Variable Name df_qwi_z_wfa
Label Degrees of freedom for QWI: average monthly earnings FQ accessions
Codebook National QWI
Concept
Type numeric
Direct Link df_qwi_z_wfa

Summary Statistics

vald   37258
invd   1082
min   199.146
max   2442075.107
mean   1645.242
stdev   28072.384

Full Description

Degrees of freedom for a generic variable `X` are defined as:

`df[\bar{X}_{agkt}] =\ (M-1)(1 + 1/(M+1) \frac{1/M sum_{l=1}^M V^{(l)} [\hat{X}_{agkt}]}{B[\bar{X}_{agkt}]})^2`

where `V^{(l)}[\hat{X}_{agkt}]` and `B[\bar{X}_{agkt}]` are respectively the within implicate variance and the between implicate variance of `X`.