Results 151 to 160 of about 4,761,459 (294)

IRT‐based response style models and related methodology: Review and commentary

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract We provide a review and commentary on recent methodological research related to item response theory (IRT) modelling of response styles in psychological measurement. Our review describes the different categories of IRT models that have been proposed, their associated assumptions and extensions, and the varying purposes they can serve.
Daniel M. Bolt, Lionel Meng
wiley   +1 more source

Estimation of the Gini coefficient for the lognormal distribution of income using the Lorenz curve. [PDF]

Springerplus, 2016
Darkwah KA, Nortey EN, Lotsi A.
europepmc   +1 more source

Multidimensional unipolar IRT and applications to the measurement of print exposure

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Item response theory (IRT) has been a prominent modelling framework in educational and psychological measurement. Traditional IRT models are bipolar, commonly assuming symmetric measurement link functions and symmetric trait distributions over a latent continuum unbounded at both ends. However, many measured constructs, such as print exposure,
Qi (Helen) Huang, Daniel M. Bolt
wiley   +1 more source

Poverty: Looking for the Real Elasticities [PDF]

After decades of intensive research on the statistical size distribution of income and despite its empirical weaknesses, the lognormal distribution still enjoys an important popularity in the applied literature dedicated to poverty and inequality. In the
Florent Bresson
core   +2 more sources

Lognormal distribution of firing time and rate from a single neuron? [PDF]

Cogn Neurodyn, 2015
Kish EA, Granqvist CG, Dér A, Kish LB.
europepmc   +1 more source

Unravelling the phylogeny of armadillos and their kin (Mammalia, Xenarthra, Cingulata) combining morphological, molecular, and stratigraphic data

Cladistics, EarlyView.
Abstract Cingulata, a major lineage of Xenarthra, comprises extinct and extant armoured placental mammals that diversified throughout the Cenozoic. Despite extensive study, phylogenetic hypotheses based on morphological and molecular data remain incongruent, and no total evidence analysis has been conducted. Here, we integrate the largest morphological
Daniel M. Casali, Mariela C. Castro, Martin R. Ciancio, Timothy J. Gaudin, Jeremy L. Bramblett, Alberto Boscaini, Fernando A. Perini, Max C. Langer   +7 more
wiley   +1 more source

Multivariate Poisson lognormal distribution for modeling counts from modern biological data: An overview. [PDF]

Comput Struct Biotechnol J
Subedi S, Dang UJ.
europepmc   +1 more source

Testing the morphology‐ and intuition‐based taxonomic hypotheses using integrative approach: unexpected discovery of triplet of sibling species within a widespread Eurasian butterfly, Hyponephele lycaon

Cladistics, EarlyView.
Abstract In well‐studied groups of organisms, the taxonomic landscape can be very complex, with several alternative classifications describing diversity within the same set of populations. For example, three hypotheses have previously been proposed to describe the taxonomy of the common and widespread Eurasian Dusky Meadow Brown butterfly, Hyponephele ...
Elena A. Pazhenkova, Vladimir A. Lukhtanov   +1 more
wiley   +1 more source

Tests of fit for the power function lognormal distribution. [PDF]

PLoS One
Wang C, Zhu H.
europepmc   +1 more source

GMM Estimation of Income Distributions from Grouped Data [PDF]

We develop a GMM procedure for estimating income distributions from grouped data with unknown group bounds. The approach enables us to obtain standard errors for the estimated parameters and functions of the parameters, such as inequality and poverty ...
D.S. Prasada Rao, Gholamreza Hajargsht, Joseph Brice, Duangkamon Chotikapanich, William E. Griffiths   +4 more
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