show_dropouts {gmoTree}

Show participants who did not finish the experiment

Description

Show information on the people who did not finish the experiment at (a) certain page(s) and/or app(s).

Usage

show_dropouts(oTree, final_apps = NULL, final_pages = NULL, saved_vars = NULL)

Arguments

oTree

A list of data frames that were created by import_otree.

final_apps

Character. The name(s) of the app(s) at which the participants have to finish the experiment.

final_pages

Character. The name(s) of the page(s) at which the participants have to finish the experiment.

saved_vars

The name(s) of variable(s) that need(s) to be shown in the list of information on dropout cases.

Value

This function returns a list of information on participants who did not finish the experiment.

In this list, you can find the following information:

- $full = A data frame that contains information on all participants who did not finish the study; it shows their participant codes, the names of the apps in which they left the experiment, the names of the pages in which they left the experiment, the names of the app data frames in which this information was found, and the dropout reason ("ENC", experiment not completed, combined with the name of the data frame in which the dropout was observed). Because participants usually appear in multiple app data frames, the $full data frame may contain several entries for each person.

- $unique = A data frame that contains similar information as the $full data frame but with only one row per participant and no information on the data frame in which the dropout was observed.

- $all_end = A table that provides information on the app and page combinations where participants ended the experiment. This table also includes information on participants who did not drop out of the experiment. The $all_end table is only shown if an $all_apps_wide data frame exists.

- $codes = A vector containing the participant codes of all participants who did not finish the experiment.

- $count = The number of all participants who did not finish the experiment.

It is important to note that if only the argument final_pages is set, this function does not distinguish between page names that reoccur in different apps.

If the columns end_app and end_page in the output are empty, these variables were not saved by oTree for the specific participants. This could be because empty rows were not deleted. This can be done by using the argument del_empty = TRUE" when using import_otree.

Examples

# Use package-internal list of oTree data frames
oTree <- gmoTree::oTree

# Show everyone who did not finish with the app "survey"
show_dropouts(oTree, final_apps = "survey")

# Show everyone who did not finish with the page "Demographics"
show_dropouts(oTree, final_pages = "Demographics")

# Show everyone who finished with the following apps: "survey," "dictator"
final_apps <- unique(oTree$all_apps_wide$participant._current_app_name)
final_apps <- final_apps[final_apps != "survey"]
final_apps <- final_apps[final_apps != "dictator"]
show_dropouts(oTree, final_apps = final_apps)