do_chisq

This function performs a chi-squared contingency table test on dropout for
a given question in the data. Note that the input data should be in the format as
computed by <code>compute_stats()</code>.
The test can be performed on either all conditions (excluding total) or on select conditions.

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 square), 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. Sources: Andrea Frick, Marie-Terese Baechtiger & Ulf-Dietrich Reips (2001) <https://www.researchgate.net/publication/223956222_Financial_incentives_personal_information_and_drop-out_in_online_studies>; Ulf-Dietrich Reips (2002) "Standards for Internet-Based Experimenting" <doi:10.1027//1618-3169.49.4.243>.

Annika Tave Overlander

dropR

Dropout Analysis by Condition

Matthias Bannert

Ulf-Dietrich Reips

do_chisq function

<dl><dt>do_stats</dt>
<dd>data.frame of dropout statistics as computed by <code>compute_stats()</code>.</dd>
<dt>chisq_question</dt>
<dd>numeric Which question to compare dropout at.</dd>
<dt>sel_cond_chisq</dt>
<dd>vector (same class as in conditions variable in original data set) selected conditions.</dd>
<dt>p_sim</dt>
<dd>boolean Simulate p value parameter (by Monte Carlo simulation)? Defaults to <code>TRUE</code>.</dd></dl>

Arguments

Compute Chisq-Test Given a Question Position — do_chisq

<dl>

<dt>do_stats</dt>
<dd>data.frame of dropout statistics as computed by <code>compute_stats()</code>.</dd>


<dt>chisq_question</dt>
<dd>numeric Which question to compare dropout at.</dd>


<dt>sel_cond_chisq</dt>
<dd>vector (same class as in conditions variable in original data set) selected conditions.</dd>


<dt>p_sim</dt>
<dd>boolean Simulate p value parameter (by Monte Carlo simulation)? Defaults to <code>TRUE</code>.</dd>

</dl>

do_chisq: Compute Chisq-Test Given a Question Position

Description

Usage

Value

Arguments

See Also

Examples