Download e-book for iPad: Latent Variable Modeling Using R: A Step-by-Step Guide by A. Alexander Beaujean

By A. Alexander Beaujean

ISBN-10: 1848726988

ISBN-13: 9781848726987

ISBN-10: 1848726996

ISBN-13: 9781848726994

This step by step consultant is written for R and latent variable version (LVM) beginners. using a direction version process and targeting the lavaan package deal, this e-book is designed to assist readers speedy comprehend LVMs and their research in R. the writer stories the reasoning in the back of the syntax chosen and offers examples that reveal the way to learn facts for quite a few LVMs. that includes examples acceptable to psychology, schooling, enterprise, and different social and future health sciences, minimum textual content is dedicated to theoretical underpinnings. the fabric is gifted with out using matrix algebra. As a complete the publication prepares readers to put in writing approximately and interpret LVM effects they receive in R.

Each bankruptcy positive factors historical past info, boldfaced key phrases outlined within the word list, designated interpretations of R output, descriptions of the way to put in writing the research of effects for book, a precis, R established perform routines (with options integrated behind the book), and references and comparable readings. Margin notes support readers larger comprehend LVMs and write their very own R syntax. Examples utilizing facts from released paintings throughout a number of disciplines show the best way to use R syntax for examining and studying effects. R capabilities, syntax, and the corresponding effects look in grey packing containers to aid readers quick find this fabric. a special index is helping readers fast find R functions, programs, and datasets. The e-book and accompanying web site at http://blogs.baylor.edu/rlatentvariable/ presents the entire facts for the book’s examples and routines in addition to R syntax so readers can reflect the analyses. The e-book experiences the right way to input the knowledge into R, specify the LVMs, and acquire and interpret the envisioned parameter values.

The ebook opens with the basics of utilizing R together with easy methods to obtain this system, use capabilities, and input and manage info. Chapters 2 and three introduce after which expand direction versions to incorporate latent variables. bankruptcy four exhibits readers find out how to learn a latent variable version with information from a couple of workforce, whereas bankruptcy five indicates find out how to research a latent variable version with facts from multiple period of time. bankruptcy 6 demonstrates the research of dichotomous variables, whereas bankruptcy 7 demonstrates the right way to research LVMs with lacking info. bankruptcy eight makes a speciality of pattern dimension selection utilizing Monte Carlo equipment, that are used with quite a lot of statistical versions and account for lacking information. the ultimate bankruptcy examines hierarchical LVMs, demonstrating either higher-order and bi-factor methods. The booklet concludes with 3 Appendices: a overview of universal measures of version healthy together with their formulae and interpretation; syntax for different R latent variable types applications; and suggestions for every chapter’s exercises.

Intended as a supplementary textual content for graduate and/or complex undergraduate classes on latent variable modeling, issue research, structural equation modeling, merchandise reaction idea, dimension, or multivariate data taught in psychology, schooling, human improvement, company, economics, and social and future health sciences, this publication additionally appeals to researchers in those fields. necessities comprise familiarity with simple statistical ideas, yet wisdom of R is not assumed.

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Extra resources for Latent Variable Modeling Using R: A Step-by-Step Guide

Example text

Thus the variation (or covariation if there is more than one) in the LVs causes (loosely defined) covariation in the indicators; conversely, covariation in the indicator variables is due to their dependence on one or more LVs. , what they predict, what variables predict them). In path models, LVs are represented using ellipses. 3 contains an example of a g stands for general one-factor LVM using subtests from the Wechsler Intelligence Scale for Children-Fourth Ediintelligence. tion (WISC-IV; Wechsler, 2003).

To use it, first I label the parameters I want to use. Then, I define the new parameter. model <- ' salary ~ a*school + c*iq school ~ b*iq ind := b*c ' Lines 1-3 are typical lavaan specification syntax, but in line 4 I define a new parameter, ind, which is the product of parameters b and c. Estimation of the parameters follows the same steps as for the first example: input the data, specify the model, and estimate the parameters. 8 (n = 300). html 32 Chapter 2. nobs=300) The summary() results are similar to those from the previous example, only now there is a Defined Parameters section that houses the estimate for the newly defined indirect effect parameter.

1 Example of data analysis methods subsumed by a structural equation model. 37 Structural Equation Model (SEM) Latent Variable Model (LVM) Confirmatory Factor Analysis (CFA) Exploratory Factor Analysis (EFA) The factor in factor analysis is synonymous with a latent variable. 38 Chapter 3. Basic Latent Variable Models LV Var 1 E1 Var 1 Var 2 E2 Var 2 Var 3 E3 Var 3 (a) LV is a reflective latent variable. LV ELV (b) LV is a formative latent variable. 2 Reflective and formative latent variable path models.

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Latent Variable Modeling Using R: A Step-by-Step Guide by A. Alexander Beaujean


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