2003) have shown that the estimated standard errors
produced by S-Plus can systematically underestimate the true variability of fitted linear parameters in semiparametric GAMs.
For the new data on union and nonunion workers presented here, standard errors
for each estimate were computed.
0481) Notes: Figuren in parenthesis are standard errors
which have been indirectly estimated from the variance-covariance matrix.
linear regression, logistic regression, and analysis of variance) do not properly account for the nested structure of such data, and can yield biased parameter estimates, and incorrect standard errors
(Bryk & Raudenbush, 2001).
In the second phase, parameter estimations and standard errors
are obtained from m completed data sets.
Third, a fixed cut-off score would ignore the fact that different IQ tests have different standard errors
of measurement (SEM).
In the table, values in the column titled 'mean' are the averaged estimates of each parameter over 1000 Monte Caro replications; the 'asymptotic standard error
' is the model-based standard error
; the 'empirical standard error
' is the standard errors
of the 1000 estimates of each parameter; and the 'type I error' is the percent of times the null hypothesis--that the estimated parameter is equal to the true parameter--is rejected.
2009) demonstrated how neglecting to incorporate complex sample design information results in substantially smaller standard errors
and an increased risk of Type I errors.
In this issue, Siu and Morash do not use standard deviations at all, but instead use standard errors
(sometimes called standard error
of the mean).
The standard errors
for monthly natural gas volume and price estimates by State are given in Table C1.
We can estimate how much bigger by weighing the potential size of the October sample against typical sample sizes, historical standard errors
, and the likely inflation rate.
In the pooling phase, the patient disability estimates and standard errors
were combined into a single set of results for each of the three data sets (Figure 1).