Sentences with phrase «by omitted variable»

Studies of interventions for unsettled infant behaviour are compromised by omitted variable bias, due to unidentified clinical breastfeeding problems

Not exact matches

But I knew that there are some grinches out there who will gripe and groan about omitted variable bias, so I needed to confirm that the effect was real by finding it in another data source.

... since student growth percentiles make no attempt (by design) to consider other factors that contribute to student achievement growth, the measures have significant potential for omitted variables bias.

The second and more interesting (to me) observation is that the simulated temperature changes are punctuated by multiple short term peaks and dips, differing from one model run to another, although the climate variables mentioned above were omitted from the simulations — there were no changes in model input in solar or aerosol forcing, and ENSO was largely eliminated by smoothing.

The difference is, it is now possible to test hypotheses about the chronology or the validity of the model e.g. by looking for omitted variables and to quantify the effect of certain trees.

You might as well use a ouija board as the basis of claims about the future climate history as the ensemble average of different computational physical models that do not differ by truly random variations and are subject to all sorts of omitted variable, selected variable, implementation, and initialization bias.