Effects measured on continuous type measures. were encoded as standardized mean difference type effect sizes (d). . . Author and Year N Favors Comparison Favors Treatment Palmer et al. (1992) 56 Davis et al. (2000) (26 week program) 315 Dunford (2000) (conjoint) 303 Feder & Forde (2000) 400 Dunford (2000) (rigorous monitoring) 323 Dunford (2000) (men's group) 318 Davis et al. (2000) (8 week program) 247 Overall Mean d -1.0 -.75 - 50 - 25 0 .25 .50 .75 1.0 1.25 1.50 1.75 2.0 Standardized Mean Difference ES (d) Figure 1: Effect Size (d) and 95% Confidence Interval for Official Measure from Experimental (Random) Studies Author and Year N Favors Comparison Favors Treatment Davis et al. (2000) (26 week program) 156 Davis et al. (2000) (8 week program) 121 Dunford (2000) (conjoint) 303 Dunford (2000) (rigorous monitoring) 300 Dunford (2000) (men's group) 300 Feder & Forde (2000) 67 Harrell (1991) 162 Overall Mean d -1.0 - 75 - 50 - 25 0 .25 .50 .75 1.0 1.25 1.50 1.75 2.0 Standardized Mean Difference ES (d) Figure 4: Effect Size (d) and 95% Confidence Interval for Victim Reported Measures from Experimental and Quasi-Experimental Studies with a No Treatment Comparison Group p. 148 Official reports were either official complaints made to the police that