Missing Data / Selection Bias Visualizer
Explore how regression estimates can be biased by missing data / selection.
Percent Missing
100%
Missingness Mechanism
Completely Random
X
Y
X + Y
Flatter β
Steeper β
X range:
[20, 80]
Missing if X <
20
or X >
80
Y range:
[30, 60]
Missing if Y <
30
or Y >
60
% missing:
0%
New Sample
Observed
Missing
True β:
1.00
Observed β:
1.00
Bias:
0.00
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