Code, Apps, and Tutorials

Code, Apps, and Tutorials

This research topic contains a list of publications describing tutorials, code, or stand-alone applications or packages for use by applied researchers and quantitative methodologists alike.

Most of our methodological research papers include some custom coding or implementation of a statistical technique or method. Many newer papers outside of this research topic include a repository (e.g., on the Open Science Framework) that contains relevant code. Refer to the original paper for details.

Additional resources or tutorials may be available on the Tutorials section of this website, or on the upcoming Blog section.

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Carl F. Falk
Associate Professor of Quantitative Psychology

Publications

Theories can be represented as statistical models for empirical testing. There is a vast literature on model selection and multimodel …

Recent work on reliability coefficients has largely focused on continuous items, including critiques of Cronbach’s alpha. Although two …

This is a brief expository paper on reparameterized intercepts under constrained variants of the nominal response model, including the …

Recent years have seen a dramatic increase in item response models for measuring response styles on Likert-type items. These …

This article introduces and demonstrates the application of an R statistical programming environment code for conducting structural …

Computer programming in quantitative analysis refers to the process of creating computer “code”—or instructions that a computer can …

In this article, we describe two new programs that compute both p-values and confidence intervals (CI) for the indirect effect in …

Popular computer programs print 2 versions of Cronbach’s alpha: unstandardized alpha, αΣ, based on the covariance matrix, and …