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The g-index is a measure of effect size calculated using the proportion of scores in the desired zone. Used when there is a trend in the data.
Gindex(behavior, phaseX, v1, v2)
behavior variable
phase variable
first phase letter between quotation marks (e.g., "A")
second phase letter between quotation marks (e.g., "B")
Charles Auerbach, PhD Wurzweiler School of Social Work Wendy Zeitlin, PhD Montclair State University
Auerbach, Charles, and Zeitlin Wendy. SSD for R: An R Package for Analyzing Single-Subject Data. Oxford University Press, 2014. p57-59
Go to www.ssdanalysis.com for more information.
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")
Gindex(cry,pcry,"A","B")
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