“…A number of these instruments have been found to have strong psychometric properties including the Child Behavior Checklist (Achenback & Edelbrock, 1983), Conners Parent and Teacher Rating Scales (Goyette, Conners, & Ulrich, 1978), Personality Inventory for Children (Wirt, Lachar, Klinedinst, & Seat, 1984), and the Revised Behavior Problem Checklist (Quay & Peterson, 1983). In most cases, respondents indicate the frequency and/or severity of various problem behaviors based on their observations across situations within the home or school.…”