Participants were assigned randomly to three viagra dosages (placebo, low dosage, high dosage). The dependent variable was an objective measure of libido.
Usage
viagra
Arguments
Format
A data frame with 2 variables and 15 observations:
dose
viagra dosage
libido
objective measure of libido
Details
Artificial dataset from Field et al. book (p. 401).
References
Field, A., Miles, J., & Field, Z. (2012). Discovering Statistics Using R. Sage.