One often hears that kids' behavior seems to be getting worse. Abundant
publicity about the misdeeds of today's young people certainly supports
this impression. However, to determine whether the prevalence of problem
behaviors is actually changing, it is necessary to assess representative
samples of the population using the same standardized methodology at
different points in time. In 1993, Achenbach and Howell (1993) reported
comparisons of parents' ratings on the CBCL and teachers' ratings on
the TRF that showed significant increases in problems over intervals
of 13 and 8 years, respectively. As a sequel to that study, Achenbach,
Dumenci, and Rescorla (2002a, 2002b, 2003) compared CBCL, TRF, and YSR
scores obtained in national surveys in 1989 versus 1999. Ratings by
parents, teachers, and youths all showed small declines in problem scores
from 1989 to 1999. In addition, Achenbach et al. (2002a, 2003) compared
the 1989 and 1999 problem scores with the 1976 CBCL scores and 1981
TRF scores that had been reported by Achenbach and Howell (1993). Spanning
23 years for the CBCL and 18 years for the TRF, these comparisons showed
that the significant increases in problem scores in 1989 were reversed
in 1999. The 1999 CBCL problem scores were not as low as in 1976, but
CBCL social competence scores were as high as in 1976. The changes from
the earliest assessment to 1989 and then to1999 did not differ significantly
in relation to the age, gender, socioeconomic status, nor ethnicity
of the children. Despite the increases and then declines in problem
scores, correlations between the mean scores obtained on the problem
items from one assessment to another ranged from .94 to .99 over periods
up to 23 years. This indicated great stability in the problems that
received relatively high, medium, or low scores from parents, teachers,
and youths at each assessment.
References:
Achenbach, T.M., Dumenci, L., & Rescorla, L.A. (2002a). Is American
student behavior getting worse? Teacher ratings over an 18-year period.
School Psychology Review, 31, 428-442.
Achenbach, T.M., Dumenci, L., & Rescorla, L.A. (2002b). Ten-year
comparisons of problems and competencies for national samples of youth:
Self, parent, and teacher reports. Journal of Emotional and Behavioral
Disorders, 10, 194-203.
Achenbach, T.M., Dumenci, L., & Rescorla, L.A. (2003). Are American
children's problems still getting worse? A 23-year comparison. Journal
of Abnormal Child Psychology, 31, 1-11.
Achenbach, T.M., & Howell, C.T. (1993). Are American children's
problems getting worse? A 13-year comparison. Journal of the American
Academy of Child and Adolescent Psychiatry, 32, 1145-1154.