Lp Loss Functions in Invariance Alignment and Haberman Linking with Few or Many Groups
Stats, 2020 The comparison of group means in latent variable models plays a vital role in empirical research in the social sciences. The present article discusses an extension of invariance alignment and Haberman linking by choosing the robust power loss function ρ ...
Alexander Robitzsch
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Linking Error Estimation in Haberman Linking
AppliedMathHaberman linking is a widely used method for comparing groups using the two-parameter logistic item response model. However, the traditional Haberman linking approach relies on joint item parameter estimation, which prevents the application of standard M-
Alexander Robitzsch
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Comparing Robust Haberman Linking and Invariance Alignment
StatsLinking methods are widely used in the social sciences to compare group differences regarding the mean and the standard deviation of a factor variable. This article examines a comparison between robust Haberman linking (HL) and invariance alignment (IA ...
Alexander Robitzsch
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Geospatial Variation in Caesarean Delivery [PDF]
, 2020 Aim: The purpose of this study was to evaluate the variation in caesarean delivery rates across counties in Georgia and to determine whether county-level characteristics were associated with clusters. Design: This was a retrospective, observational study.
Dunlop, Anne +2 more
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An investigation into the impact of deprivation on demographic inequalities in adults [PDF]
, 2020 This research investigates the impact of deprivation on demographic inequalities in England and Wales among adults. Using demographic measures including the modal age at death, life expectancy, lifespan variation and mortality, it shows a negative ...
Bennett, Bennett, Haberman, Islami, Lee
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Longevity-contingent deferred life annuities [PDF]
, 2014 Considering the substantial systematic longevity risk threatening annuity providers’ solvency, indexing benefits on actual mortality improvements appears to be an efficient risk management tool, as discussed in Denuit et al. (2011) and Richter and Weber (
A. E. RENSHAW +7 more
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Identifiability in Age/Period/Cohort Mortality Models [PDF]
, 2020 The addition of a set of cohort parameters to a mortality model can generate complex identifiability issues due to the collinearity between the dimensions of age, period and cohort.
Blake, D., Hunt, A.
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Editorial: crime patterns in time and space: the dynamics of crime opportunities in urban areas [PDF]
, 2015 The routine activity approach and associated crime pattern theory emphasise how crime emerges from spatio-temporal routines. In order to understand this crime should be studied in both space and time. However, the bulk of research into crime patterns and
A Ashby +17 more
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Micro-Scale, Meso-Scale, Macro-Scale, and Temporal Scale: Comparing the Relative Importance for Robbery Risk in New York City [PDF]
, 2021 We compare the relative importance of four dimensions for explaining the micro location of robberies: 1) the micro spatial scale of street segments; 2) the meso spatial scale surrounding the street segment; 3) the temporal pattern, and 4) the macro-scale
Hipp, JR, Kim, YA, Wo, JC
core
Existence and Uniqueness of Tri-tronqu\'ee Solutions of the second Painlev\'e hierarchy
, 2002 The first five classical Painlev\'e equations are known to have solutions described by divergent asymptotic power series near infinity. Here we prove that such solutions also exist for the infinite hierarchy of equations associated with the second ...
Ablowitz M J +18 more
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