1. L

    [ self-selection - nonresponse bias] 65% of population answered survey

    Dear TalkStatstters, I want to investigate possible wage gaps between different groups of people with doctorate degree, in my region. So, I have in mind a regression where the dependent variable is the log of the ratio between two average wages. I have administrative data from the whole...
  2. M

    personality psych)self-selected sample bias = smaller variability?

    Context: online personality survey (BFI) for age 10~65 ( Measure taken: the authors tried to control for possible self-selection bias in the sample by "by examining the variability of Big Five domains and facets in...