Dropout Analysis Walkthrough | Basic Dropout Statistics | Plotting Dropout Curves | Full Workflow Example using tidyverse | Reporting dropout
Package: dropR 1.0.6
Annika Tave Overlander
dropR: Dropout Analysis by Condition
Analysis and visualization of dropout between conditions in surveys and (online) experiments. Features include computation of dropout statistics, comparing dropout between conditions (e.g. Chi squared), analyzing survival (e.g. Kaplan-Meier estimation), comparing conditions with the most different rates of dropout (Kolmogorov-Smirnov) and visualizing the result of each in designated plotting functions. Article published in _Behavior Research Methods_ on 'dropR' by the authors: Dropout analysis: A method for data from Internet-based research and 'dropR', an R-based web app and package to analyze and visualize dropout. (2025) <doi:10.3758/s13428-025-02730-2>. Sources: Andrea Frick, Marie-Terese Baechtiger & Ulf-Dietrich Reips (2001) <doi:10.5167/uzh-19758>; Ulf-Dietrich Reips (2002) <doi:10.1026//1618-3169.49.4.243>.
Authors:
dropR_1.0.6.tar.gz
dropR_1.0.6.zip(r-4.7-any)dropR_1.0.6.zip(r-4.6-any)dropR_1.0.6.zip(r-4.5-any)
dropR_1.0.6.tgz(r-4.6-any)dropR_1.0.6.tgz(r-4.5-any)
dropR_1.0.6.tar.gz(r-4.7-any)dropR_1.0.6.tar.gz(r-4.6-any)
dropR_1.0.6.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
dropR/json (API)
| # Install 'dropR' in R: |
| install.packages('dropR', repos = c('https://iscience-kn.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/iscience-kn/dropr/issues
Pkgdown/docs site:https://iscience-kn.github.io
Datasets:
- dropRdemo - Demo Dataset for Dropout in an Online Survey
dropoutexperimentspsychologysocial-science
Last updated from:4c5e3ee271. Checks:9 OK. Indexed: yes.
| Target | Result | Time | Files | Syslog |
|---|---|---|---|---|
| linux-devel | OK | 160 | ||
| source / vignettes | OK | 224 | ||
| linux-release | OK | 166 | ||
| macos-release | OK | 179 | ||
| macos-oldrel | OK | 171 | ||
| windows-devel | OK | 108 | ||
| windows-release | OK | 109 | ||
| windows-oldrel | OK | 100 | ||
| wasm-release | OK | 134 |
Exports:add_dropout_idxcompute_statsdo_chisqdo_kpmdo_ksdo_or_tabledo_printdo_stepsget_oddsget_odds_ratioget_steps_by_condget_survdiffplot_do_curveplot_do_kpmplot_do_ksstart_app
Dependencies:base64encbslibcachemclicommonmarkcpp11data.tabledigestfarverfastmapfontawesomefsggplot2gluegtablehtmltoolshttpuvisobandjquerylibjsonlitelabelinglaterlatticelifecyclemagrittrMatrixmemoisemimeotelpromisesR6rappdirsRColorBrewerRcpprlangS7sassscalesshinysourcetoolssurvivalvctrsviridisLitewithrxtable
Interactive Dropout Analysis with dropR
Last update: 2026-02-20
Started: 2024-05-23
Running Dropout related Tests with dropR
Running a Chi-sq. Test for a Selected Question | Kaplan-Meier Estimation
Last update: 2026-02-20
Started: 2024-05-23
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| Add Dropout Index to a Data.Frame | add_dropout_idx |
| Compute Dropout Statistics | compute_stats |
| Compute Chi-Squared Test Given a Question Position | do_chisq |
| Kaplan-Meier Survival Estimation | do_kpm |
| Compute Kolmogorov-Smirnov Test for most extreme conditions | do_ks |
| Dropout Odds Ratio Table | do_or_table |
| Print dropout / test results in a compact, report-ready string | do_print do_print.do_chi do_print.do_stats |
| Calculate Steps for Uneven Data Points | do_steps |
| Demo Dataset for Dropout in an Online Survey | dropRdemo |
| Compute Odds From Probabilities | get_odds |
| Compute Odds Ratio | get_odds_ratio |
| Get Steps Data by Condition | get_steps_by_cond |
| Test Survival Curve Differences | get_survdiff |
| Plot Dropout Curves | plot_do_curve |
| Plot a Kaplan Meier Survival Estimation | plot_do_kpm |
| Plot Most Extreme Conditions to Visualize Kolmogorov-Smirnov Test Results | plot_do_ks |
| Start the dropR Shiny App | start_app |