Selection bias lab experiments

From the on-line sample of 81 Berlin participants we sent two emails:

  1. Email with general inquiry, listing how long the session will be (2 hrs) and how much will they be paid (25-31 eur)
  2. If they successfully answered to the first one another email was sent with details of the study (electrical shocks)

Response distributions

  • histograms/density plots are normalized per category
STAI trait anxiety
STICSA trait
Age
Media valence
COVID worry
Avoidance behaviour
COVID-spec anxiety
COVID prob estimates
0.12998006207221469
0.09962562419750537
0.23564169824417291
0.6437613354115653
0.6871131871578922
0.7940474948035356
1.0
0.1417282087753832
<AxesSubplot:title={'center':'Email 2: The study involves electrical stimuli, \ndo you still want to take part? (n=43)'}, xlabel='COVID prob estimates', ylabel='Probability'>