treatment {smdata}

Chest Pain Treatment Preferences

Description

Experimental data in which participants were presented with statistical information about two treatments for chest pain, then asked about their preference for a treatment.

Usage

data("treatment")

Format

A data frame with 235 observations on the following 4 variables.

cond

Condition, referring to the way that statistical information was presented (see details).

choice

Treatment preference on an ordinal, 6-level scale from "definitely angioplasty" to "definitely bypass".

effectiveness

Participant ratings of the importance of treatment effectiveness on treatment choice (1 is extremely unimportant; 6 is extremely important).

invasiveness

Participant ratings of the importance of treatment invasiveness on treatment choice (1 is extremely unimportant; 6 is extremely important).

Details

The data were taken from Hulsey (2010). Study participants were asked to make a hypothetical decision between two treatments for chest pain: bypass surgery or balloon angioplasty. Bypass is generally more effective, but it is also more invasive and has a longer recovery time.

Conditions were defined by the way participants received statistical information concerning the two treatments. In condition pictograph, participants viewed visual information via a pictograph. In condition statistics, participants view numerical information.

Source

Provided by Lukas Hulsey.

References

Hulsey, L. (2010). Testimonials and statistics in patient medical decision aids. Unpublished master's thesis, Wichita State University.

Examples

data("treatment", package="smdata")