This is a list of some of the projects I have worked on over the years. Most of these link to either the project website or Github. The vast majority of my projects are hosted on Github.

DAACS
Research
Diagnostic Assessment and Achievement of College Skills

DTedit
r-package
Editable DataTables for shiny apps.

DataCache
r-package
An R package to maintain data caches.

FutureMapping
r-package
Amplify Youth Ask Youth Survey Data Dashboard and Mapping Project.

IRRsim
r-package
This package provides functions and a shiny application to simulate inter-rater reliability statistics based on various scoring and response models. The initial motivation…

PSA
r-package
book
Propensity Score Analysis (PSA) is a statistical approach for estimating causal effects from observational studies. This project includes materials from workshops taught, an…

PSAboot
r-package
psa
R Package and Shiny Application for the Analysis of Qualitative Data.

PSAgraphics
r-package
psa
An R Package to Support Propensity Score Analysis.

ShinyQDA
r-package
The ShinyQDA package is designed to assist researchers with the analysis of qualitative data.

TriMatch
r-package
psa
Propensity score matching for non-binary treatments.

VisualStats
r-package
book
Visual Statistics package and book.

brickset
r-package
An R package to interface with the Brickset.com API for getting data about LEGO sets

ipeds
r-package
An R package to interface with the Integrated Postsecondary Education Data System.

likert
r-package
An R package designed to help analyzing and visualizing Likert type items.

login
r-package
shiny
This package provides a framework for adding user authentication to Shiny applications. This is unique to other authentication frameworks such as ShinyManager and shinyauthr…

medley
r-package
Predictive Modeling with Missing Data

mldash
r-package
Mashine learning dashboard

multilevelPSA
r-package
psa
An R package for estimating and visualizing multilevel propensity score models.

naep
r-package
An R package to interface with the National Assessment of Educational Progress (NAEP) restricted use databases. This includes access any analyzing data using the replicate…

pisa
r-package
A data-only R package for the 2009 Programme of International Student Assessment (PISA) conducted by Organisation for Economic Co-operation and Development (OECD).

qualtrics
r-package
An R package to interface with the Qualtrics.com survey system.

ruca
r-package
An R package to get Rural-Urban Commuting Area (RUCA) Codes from zip codes.

sqlutils
r-package
The sqlutils package provides a set of utility functions to help manage a library of structured query language (SQL) files.

timeline
r-package
An R package to create timeline figures.
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