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Mixture Models for Ordinal Data [PDF]

open access: yesSociological Methods & Research, 2010
Cumulative probability models are widely used for the analysis of ordinal data. In this article the authors propose cumulative probability mixture models that allow the assumptions of the cumulative probability model to hold within subsamples of the data. The subsamples are defined in terms of latent class membership.
Breen, R., Luijkx, R.
openaire   +2 more sources

Interval-Valued Intuitionistic Fuzzy Synthetic Measure (I-VIFSM) Based on Hellwig’s Approach in the Analysis of Survey Data

open access: yesMathematics, 2021
Several complex phenomena are measured with the use of tools in the form of a questionnaire where the values of criteria are assessed by the respondents using ordinal scales.
Ewa Roszkowska, Bartłomiej Jefmański
doaj   +1 more source

Maximally selected chi-square statistics for at least ordinal scaled variables [PDF]

open access: yes, 2005
The association between a binary variable Y and a variable X with an at least ordinal measurement scale might be examined by selecting a cutpoint in the range of X and then performing an association test for the obtained 2x2 contingency table using the ...
Boulesteix, Anne-Laure
core   +2 more sources

Fruit production is influenced by tree size and size‐asymmetric crowding in a wet tropical forest

open access: yesEcology and Evolution, 2019
In tropical forest communities, seedling recruitment can be limited by the number of fruit produced by adults. Fruit production tends to be highly unequal among trees of the same species, which may be due to environmental factors.
David M. Minor, Richard K. Kobe
doaj   +1 more source

On Two Mixture-Based Clustering Approaches Used in Modeling an Insurance Portfolio

open access: yesRisks, 2018
We review two complementary mixture-based clustering approaches for modeling unobserved heterogeneity in an insurance portfolio: the generalized linear mixed cluster-weighted model (CWM) and mixture-based clustering for an ordered stereotype model (OSM).
Tatjana Miljkovic   +1 more
doaj   +1 more source

Comparing distributions of ordinal data [PDF]

open access: yesThe Stata Journal: Promoting communications on statistics and Stata, 2020
To compare distributions of ordinal data such as individuals’ responses on Likert-type scale variables summarizing subjective well-being, we should not apply the toolbox of methods developed for cardinal variables such as income. Instead, we should use an analogous toolbox that accounts for the ordinal nature of the responses.
openaire   +3 more sources

How Good are Our Measures? Investigating the Appropriate Use of Factor Analysis for Survey Instruments

open access: yesJournal of MultiDisciplinary Evaluation, 2015
Background: Evaluation work frequently utilizes factor analysis to establish the dimensionality, reliability, and stability of surveys. However, survey data is typically ordinal, violating the assumptions of most statistical methods, and thus is often ...
Megan Sanders   +2 more
doaj   +1 more source

Qualitative - Binary, Nominal and Ordinal Data Analysis in Medical Science

open access: yesNational Journal of Community Medicine, 2022
The outcome of any medical research is belonged to the human beings. The correct application of statistical test has its paramount importance. This article provides the details of categorical data analysis test with example and with its interpretation ...
Swati Patel
doaj   +1 more source

Smoothing in Ordinal Regression: An Application to Sensory Data

open access: yesStats, 2021
The so-called proportional odds assumption is popular in cumulative, ordinal regression. In practice, however, such an assumption is sometimes too restrictive.
Ejike R. Ugba   +2 more
doaj   +1 more source

Semiparametric Modeling of Ordinal Data [PDF]

open access: yes, 2000
Parametric models for categorical ordinal response variables, like the proportional odds model or the continuation ratio model, assume that the predictor is given as a linear form of covariates.
Kauermann, Göran, Tutz, Gerhard
core   +2 more sources

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