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The difference between the expected value of a parameter estimator & the true value of the parameter. Do NOT use this tag to refer to the [bias-term] / [bias-node] (ie the [intercept]).

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Potential bias in a study design

My question is - am I in risk to suffer from some sort of selection bias here if I am to remove the last group from my study? …
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Incidental parameter problem

In FE models of the type $$y_{it} = \alpha_i + \beta X_{it} + u_{it}$$ $\alpha$ is the incidental parameter, because theoretically speaking, it is of a secondary importance. Usually, $\beta$ is the im …
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