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latent variable

Correlated Errors in Confirmatory Factor Analysis

by Jeff Meyer  3 Comments

Latent constructs, such as liberalism or conservatism, are theoretical and cannot be measured directly.

But we can represent the latent construct by combining a set of questions on a scale, called indicators. We do this via factor analysis.

Often prior research has determined which indicators represent the latent construct. Prudent researchers will run a confirmatory factor analysis (CFA) to ensure the same indicators work in their sample.

[Read more…] about Correlated Errors in Confirmatory Factor Analysis

Tagged With: Confirmatory Factor Analysis, error term, Factor Analysis, latent variable, Model Fit

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Member Training: A Guide to Latent Variable Models

by Jeff Meyer 

An extremely useful area of statistics is a set of models that use latent variables: variables whole values we can’t measure directly, but instead have to infer from others. These latent variables can be unknown groups, unknown numerical values, or unknown patterns in trajectories.

[Read more…] about Member Training: A Guide to Latent Variable Models

Tagged With: Confirmatory Factor Analysis, Growth Mixture Model, latent class analysis, Latent Growth Curve Model, Latent Profile Analysis, Latent Transition Analysis, latent variable, Structural Equation Modeling

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One of the Many Advantages to Running Confirmatory Factor Analysis with a Structural Equation Model

by Jeff Meyer  9 Comments

Based on questions I’ve been asked by clients, most analysts prefer using the factor analysis procedures in their general statistical software to run a confirmatory factor analysis.

While this can work in some situations, you’re losing out on some key information you’d get from a structural equation model. This article highlights one of these.

[Read more…] about One of the Many Advantages to Running Confirmatory Factor Analysis with a Structural Equation Model

Tagged With: CFA, Confirmatory Factor Analysis, Cronbach's alpha, eigenvalue, Factor Analysis, factor loadings, latent construct, Latent Growth Curve Model, latent variable, Model Fit, residuals, SEM, Structural Equation Modeling

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First Steps in Structural Equation Modeling: Confirmatory Factor Analysis

by Jeff Meyer  6 Comments

Confirmatory factor analysis (CFA) is the fundamental first step in running most types of SEM models. You want to do this first to verify the measurement quality of any and all latent constructs you’re using in your structural equation model.

[Read more…] about First Steps in Structural Equation Modeling: Confirmatory Factor Analysis

Tagged With: CFA, Confirmatory Factor Analysis, latent construct, Latent Growth Curve Model, latent variable, SEM, Structural Equation Modeling

Related Posts

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  • Three Myths and Truths About Model Fit in Confirmatory Factor Analysis

Life After Exploratory Factor Analysis: Estimating Internal Consistency

by guest contributer  2 Comments

by Christos Giannoulis, PhD

After you are done with the odyssey of exploratory factor analysis (aka a reliable and valid instrument)…you may find yourself at the beginning of a journey rather than the ending.

The process of performing exploratory factor analysis usually seeks to answer whether a given set of items form a coherent factor (or often several factors). If you decide on the number and type of factors, the next step is to evaluate how well those factors are measured.

[Read more…] about Life After Exploratory Factor Analysis: Estimating Internal Consistency

Tagged With: Coefficient alpha, Cronbach's alpha, Exploratory Factor Analysis, Factor Analysis, latent variable, reliability, scale reliability

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Confirmatory Factor Analysis: How To Measure Something We Cannot Observe or Measure Directly

by guest contributer  Leave a Comment

by Christos Giannoulis, PhD

Many times in science we are intrigued to measure an underlying characteristic that cannot be observed or measured directly. This measure is hypothesized to exist to explain variables, such as behavior, that can be observed.

The measurable variables are called manifest variables. The unmeasurable are called latent variables.

Latent variables are often called factors, especially in the context of factor analysis.

[Read more…] about Confirmatory Factor Analysis: How To Measure Something We Cannot Observe or Measure Directly

Tagged With: CFA, Confirmatory Factor Analysis, EFA, Error, Exploratory Factor Analysis, latent variable, manifest variable, measurement, random error, True Score

Related Posts

  • One of the Many Advantages to Running Confirmatory Factor Analysis with a Structural Equation Model
  • First Steps in Structural Equation Modeling: Confirmatory Factor Analysis
  • The Four Models You Meet in Structural Equation Modeling
  • Correlated Errors in Confirmatory Factor Analysis

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