Milburn report on social mobility http://tinyurl.com/nhyo76g : 'IQ tests harm disadvantaged applicant groups'. Hmmm...pic.twitter.com/0WpDM8PPt6
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@KirkegaardEmil@AndrewSabisky@Rosalind_Arden_ Indeed, & misunderstood. But different means/common slopes examples help understanding
@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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