dexter: An R Package to Manage and Analyze Test Data

Abstract

In this study, we present a package for R that is intended as a professional tool for the management and analysis of data from educational tests and useful both in high-stakes assessment programs and survey research. Focused on psychometric models based on the sum score as the scoring rule and having sufficient statistics for their parameters, dexter fully exploits the many theoretical and practical advantages of this choice: lack of unnecessary assumptions, stable and fast estimation, and powerful and sensible diagnostic techniques. It includes an easy to use data management system tailored to the structure of test data and compatible with the current paradigm of tidy data. Companion packages currently include a graphical user interface and support for multi-stage testing.

Adolescent mental health is affected by neighborhood mental health conditions at the beginning of adolescence

“…Statistical analysis packages included summarytools 51 , mice 52 , dplyr 53 , psych 54 , effsize 55 , corrplot 56 , ggplot2 57 , lea et 58 , and lmerTest (optimizer = "bobyqa") 59 packages in R version 4.1.0 60 . The signi cance level was corrected using the Bonferroni method, as the analysis was performed using seven predictive health measures (p < 0.0071 = 0.05/7).…”

SNSequate: Standard and Nonstandard Statistical Models and Methods for Test Equating

“…A good summary of the main capabilities of some of these software can be found in Weeks (2010). The list given by Weeks (2010) includes the following software packages: EQUATE (Baker 1993), ST (Hanson and Zeng 1995), mcmequate (Hanson 2000), IpLink (Lee and Oshima 1997), POLYST (Kim and Kolen 2003), STUIRT (Kim and Kolen 2004), POLYEQUATE (Kolen 2004), IRTEQ (Han 2007), irtoys (Partchev 2009), and MiscPsycho (Doran 2010) software. These software are mainly designed for conducting IRT linking rather than equating, with the exception of POLYEQUATE and IRTEQ which implement IRT true score equating.…”

Editorial for the Special Issue “Computational Aspects and Software in Psychometrics II”

“…The article by Partchev, Koops, Bechger, Feskens, and Maris [10], titled "dexter: An R package to manage and analyze test data", introduces the R package dexter, which is a professional tool for data management and data analysis in educational assessment programs and survey research. The dexter package focuses on psychometric models that are based on the sum score as sufficient statistics for model parameters, and fits the current data analysis paradigm in the R tidyverse community.…”