38 The ECBI was recently restandardized with 798 children and adolescents aged 2 to 16 drawn from several pediatric health care settings (Colvin, Eyberg, & Adams, 1997). The participants were representative of the demographic composition of the Southeastern United States. The mean problem score for children aged 3 through 6 was 6.7 (E = 7.3). The mean intensity score for children aged 3 through 6 was 100.8 (SD = 34.7). The internal consistency coefficient for the ECBI intensity score was .94, and for the problem score was .93. The ECBI Intensity and Problem Scale scores were not significantly correlated with Hollingshead SES scores, child age or ethnic group. The test-retest reliability coefficients for the Intensity Scale and Problem Scale have been reported as .85 and .80, respectively, after a three month interval and .75 and .75, respectively after a ten month interval (Eyberg, 1992). The ECBI has demonstrated external validity by differentiating children with behavior problems from children without behavior problems (Eyberg & Ross, 1978) and by showing pre- to post-treatment changes (Schuhmann et al., 1998). Parenting Stress Index (PSI, Abidin, 1995) The PSI is a 101-item pencil and paper measure with an optional Life Stress scale consisting of 19 items. It was originally developed as a screening measure for the detection of stressors within a parent-child system commonly associated with dysfunctional parenting. The items of the PSI are divided into two domains, the Child Domain and the Parent Domain, each of which is further divided into subscales. The 47 items comprising the Child Domain are divided into six subscales: Adaptability, Acceptability, Demandingness, Child Mood, Distractibility, and Reinforces Parent. The 54