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. Author manuscript; available in PMC: 2017 Feb 17.
Published in final edited form as: Am J Intellect Dev Disabil. 2016 May;121(3):169–193. doi: 10.1352/1944-7558-121.3.169

Table 2.

Effect Size Metric Comparison Research for Single Case Design (SCD) Studies

Author(s) Effect Size Metrics
Compared		 # of Datasets Source of Datasets Designs Involved Major Analyses
Campbell (2004) PND, PZD, MBLR, and
 regression-based d
 (dREG)		 117 A systematic search of
 studies on the
 reduction of problem
 behavior		 Not specified 1. Statistical distribution
 (mean, standard deviation,
 minimum value, maximum
 value)
2. Intercorrelation analysis
Ma (2006) PEM, PND 202 A systematic search of
 studies on self-
 control		 Reversal design; or
 multiple-baseline
 design		 1. Statistical distribution
 (mean and standard
 deviation)
2. Correlation with original
 authors’ judgment of
 intervention effects
Parker & Hagan-Burke (2007) PEM, PND, Pearson R,
 Kruskal-Wallis W, and
 IRD		 165 A convenience sample
 of 35 articles		 Multiple phase design;
 or multiple baseline
 designs		 1. Statistical distribution
 (mean and standard
 deviation)
2. Intercorrelation analysis
3. Discriminability analysis
 through analyzing a
 uniform probability plot
 (Cleveland, 1985)
4. Agreement with visual
 analysis
Parker, Hagan-Burke, & Vannest (2007) PAND, Phi, PND, and R2 75 A convenience sample
 of 49 studies		 Multiple baseline
 design		 1. Statistical distribution
 (percentile ranks)
2. Intercorrelation analysis
3. Statistical power analysis
Parker, Vannest & Brown (2009) IRD, PND, R2, and
 Kruskal-Wallis W 		166 A random sample of
 published studies		 Not specified 1. Intercorrelation analysis
2. Discriminability analysis
Parker & Vannest (2009) NAP, PND, PEM, PAND,
 and R2 		200 A random sample of
 44 articles		 AB pre-experimental
 designs		 1. Statistical distribution
 (Percentile ranks)
2. Discriminability analysis
3. Intercorrelation analysis
4. Agreement with visual
 analysis
Wolery, Busick, Reichow, & Barton (2010) PND, PDO2, PEM, and
 PEM-T		 160 A random sample of
 articles from the
 Journal of Applied
 Behavior Analysis 		Not specified 1. Agreement with visual
 analysis
Parker, Vannest, Davis, & Sauber (2011) Tau-U family 382 A convenience sample
 of published articles		 Not specified 1. Statistical distribution
 (percentile ranks)
2. Discriminability analysis
Parker, Vannest, & Davis (2011) PEM, PND, IRD, PAND,
 Phi, NAP, and Taunovlap 		200 A convenience sample
 of more than 60
 articles		 Not specified 1. Statistical distribution
 (percentile ranks)