| CDCabove {SSDforR} | R Documentation |
Conservative Dual Criteria (CDC) desired zone above lines
Description
The conservative dual-criteria (CDC) is a relatively new approach to comparing phases that works well when data have a moderate lag-1 autocorrelation (lower than 0.6). This function uses two lines to define the desired zone: the mean and the regression line of the comparison phase.
Usage
CDCabove(behavior, phaseX, v1, v2)
Arguments
behavior |
behavior variable |
phaseX |
phase variable |
v1 |
phase letter of first (i.e., comparison) phase between quotation marks (e.g., "A") |
v2 |
phase letter of second phase between quotation marks (e.g., "B") |
Author(s)
Charles Auerbach, PhD Wurzweiler School of Social Work Wendy Zeitlin, PhD Montclair State University
References
Auerbach, Charles, and Zeitlin Wendy. SSD for R: An R Package for Analyzing Single-Subject Data. Oxford University Press, 2014. p85, p143
Fisher, W.W., Kelley, M.E. & Lomas, J.E. (2003). Visual aids and structured criteria for improving visual inspection and interpretation of single-case designs. Journal of Applied Behavior Analysis, 36(3), 387-406.
Go to www.ssdanalysis.com for more information.
Examples
cry<-c(3, 4, 2, 5, 3, 4, NA, 2, 2, 3, 2, 1, 2, NA, 2, 2, 1, 2, 1, 0, 0, 0)
pcry<-c("A", "A", "A", "A", "A", "A", NA, "B", "B", "B", "B", "B", "B", NA,
"B1", "B1", "B1", "B1", "B1", "B1", "B1", "B1")
CDCabove(cry,pcry,"A","B")