Showing 1 - 10 of 153
The issue of measurement invariance commonly arises in factor-analytic contexts, with methods for assessment including likelihood ratio tests, Lagrange multiplier tests, and Wald tests. These tests all require advance definition of the number of groups, group membership, and offending model...
Persistent link: https://www.econbiz.de/10010294761
To assess the effects of the EMU on inflation rate dynamics of its member states, the inflation rate series for 21 European countries are investigated for structural changes. To capture changes in mean, variance, and skewness of inflation rates, a generalized logistic model is adopted and...
Persistent link: https://www.econbiz.de/10010294763
introduced by means of an instructive example, and then applied to data from a general knowledge quiz and a teaching evaluation. …
Persistent link: https://www.econbiz.de/10010294791
Beta regression - an increasingly popular approach for modeling rates and proportions - is extended in various directions: (a) bias correction/reduction of the maximum likelihood estimator, (b) beta regression tree models by means of recursive partitioning, (c) latent class beta regression by...
Persistent link: https://www.econbiz.de/10010294793
checking for a violation of this assumption by detecting unobserved heterogeneity in item response data. Here, a general class … through mean and variance. The function raschmix() in the R package psychomix provides these models, leveraging the general …
Persistent link: https://www.econbiz.de/10010294820
Cognitive diagnosis models (CDMs) are an increasingly popular method to assess mastery or nonmastery of a set of fine-grained abilities in educational or psychological assessments. Several inference techniques are available to quantify the uncertainty of model parameter estimates, to compare...
Persistent link: https://www.econbiz.de/10011622772
In multinomial processing tree (MPT) models, individual differences between the participants in a study lead to heterogeneity of the model parameters. While subject covariates may explain these differences, it is often unknown in advance how the parameters depend on the available covariates,...
Persistent link: https://www.econbiz.de/10011622773
important application case, the same strategies can be employed in more general models (e.g. for zero-inflated, censored, or …
Persistent link: https://www.econbiz.de/10011869133
This paper estimates a nonlinear Threshold-VAR to investigate if a Keynesian liquidity trap due to a speculative motive was in place in the U.S. Great Depression and the recent Great Recession. We find clear evidence in favor of a breakdown of the liquidity effect after an unexpected increase in...
Persistent link: https://www.econbiz.de/10011872153
usage as well as on the theoretical discussion on anchoring and DIF in general. …
Persistent link: https://www.econbiz.de/10011930740