SSDforR (version 1.1)

ABrf2: Lag-1 autocorrelation (rf2 for small sample size)

Description

This function tests for lag-1 autocorrelation. This should be used any time the sample size is less than six. Any phase can be tested. Also produces regression line graph.

Usage

ABrf2(behavior, phaseX, v1)

Arguments

behavior

behavior variable

phaseX

phase variable

v1

letter of phase being tested (e.g., "A")

References

{Huitema, B.F. & McKean, J.W. (1994). Two reduced-biased autocorrelation estimators: rF1 and rF2. Perceptual and Motor Skills, 78(1), 323-330.

Auerbach, C. & Schudrich, W. Z. (2013). SSD for R A Comprehensive Statistical Package to Analyze Single-System Data. Research on Social Work Practice, 23(3), 346-353. doi:10.1177/104973153477213

} {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")
ABrf2(cry, pcry, "B1")