Results 261 to 270 of about 5,782,543 (332)

Sex Differences in Amyloid Pathology by Race, Ancestry, and Apolipoprotein E ε4 in an Admixed Autopsy Sample.

JAMA Neurol
Abu Raya M, Suemoto CK, Paes VR, Leite REP, Pasqualucci CA, Naslavsky MS, Rodriguez RD, Nitrini R, Ferriolli E, Allen IE, La Joie R, Grinberg LT.   +11 more
europepmc   +1 more source

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Performance of Estimators for Confirmatory Factor Analysis of Ordinal Variables with Missing Data

Structural Equation Modeling, 2020
Missing data and ordinal indicators are common in applied research involving latent constructs. Unfortunately, ordinal indicators violate the linearity assumption for conventional CFA that is routinely used to provide structural validity evidence for ...
Pui‐wa Lei, Levi K. Shiverdecker
semanticscholar   +3 more sources

Ordinal Independent Variables

SAGE Research Methods Foundations, 2020
We often want to use ordinal variables as independent/explanatory variables in our models. Rightly or wrongly, it is very common to treat such variables as continuous. Or, more precisely, as having interval-level measurement with linear effects. When the
Richard Williams
semanticscholar   +2 more sources

REGRESSION MODELS WITH ORDINAL VARIABLES

American Sociological Review, 1984
Most discussions of ordinal variables in the sociological literature debate the suitability of linear regression and structural equation methods when some variables are ordinal. Largely ignored in these discussions are methods for ordinal variables that are natural extensions of probit and logit models for dichotomous variables.
Christopher Winship, R. Mare
semanticscholar   +4 more sources

Regression for ordinal variables without underlying continuous variables

Information Sciences, 2006
Several techniques exist nowadays for continuous (i.e. numerical) data analysis and modeling. However, although part of the information gathered by companies, statistical offices and other institutions is numerical, a large part of it is represented using categorical variables in ordinal or nominal scales.
V TORRA, J DOMINGOFERRER, J MATEOSANZ, M NG   +3 more
openaire   +3 more sources

A mixture model for ordinal variables measured on semantic differential scales

Econometrics and Statistics, 2021
Subjective perceptions and attitudes are usually measured by administering questionnaires with ordered response scales. Among them, a particular case are semantic differential scales, where the respondent has to declare his/her position between two ...
Marica Manisera, P. Zuccolotto
semanticscholar   +1 more source

A Comparison of FIML- versus Multiple-imputation-based methods to test measurement invariance with incomplete ordinal variables

, 2021
To ensure meaningful comparison of test scores across groups or time, measurement invariance (i.e., invariance of the general factor structure and the values of the measurement parameters) across groups or time must be examined.
Yu Liu, Suppanut Sriutaisuk
semanticscholar   +1 more source

A statistical model for the analysis of ordinal level dependent variables

Journal of Mathematical Sociology, 1975
R. McKelvey, W. Zavoina
semanticscholar   +3 more sources