multigroup model

multigroup model

[′məl·tə‚grüp ′mäd·əl]
(nucleonics)
A model for the behavior of neutrons in a material in which they are grouped into several energy ranges, taking into account differences in spatial behavior of neutrons in the various groups, and transfer of neutrons between groups.
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When we found such a model, we conducted further analyses to check for significant differences between the four different samples by estimating a multigroup model (cf.
In technical terms, this initial multigroup model is termed the configurai model (Horn & McArdle, 1992) and is the first and least restrictive one to be tested.
Multigroup model estimated using Maximum Likelihood with robust error estimation (MLR).
Primary Goodness of Fit and Comparative Indices for the Six Models of Temporal Characteristics of Behavior (TCB) and Energetic Characteristics of Behavior (ECB) and Tests of structural invariance for multigroup model Model Type [chi square] df GFI The second sample TCB Two factors 11.
Table 3 Fit Indices and [chi square] Difference Tests for Constraints in the Multigroup Model Constraints between Top Bottom [chi square] [chi square] and Separate Pages formats probability Study 1: Latino Adolescents Model l 210.
These differences in batches both across and within reaction vessels must be accounted for in a singe multigroup model that will be required to 'model' all products being processed.
Model 2 was an unconstrained multigroup model that evaluated the general form of the full model for teachers from different preparation programs.
The results from multigroup model comparisons indicate that the factorial structure of these method effects was not significantly different for third and sixth graders.
We first tested a non-restricted multigroup model, in which all parameter estimates were allowed to differ between boys and girls.
The fit of a multigroup model (also called a "stacked model") is calculated as a weighted average of the fits obtained for each of the groups individually.
We also tested a multigroup model that estimated the SEM for both the southern school respondents and northern school respondents separately.