@AndrewSabisky @timothycbates @Rosalind_Arden_ Maybe I should do a visualization of test bias.
@timothycbates One can do multiple at once: slope, intercept, reliability, validity. Maybe email me what exactly you have in mind.
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@KirkegaardEmil something like this? Slider on means & covariances, + have the text change to describe?pic.twitter.com/0ZZQTmex4a
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@timothycbates That is an example of intercept bias, actually. :P Same predictor value does not imply same outcome values for the groups. -
@timothycbates This is what unbiased prediction looks like with different means.pic.twitter.com/wzWOkAWdfL
End of conversation
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