Valencia Johnson

Learn More
This study assessed the prevalence of driving under the influence of alcohol and marijuana among a sample of 18 and 21 year olds and examined the across-time relationships between intoxicated driving and consumption, risk-taking/impulsive orientation, negative intrapersonal state, stress and use of alcohol and other drugs to cope with problems. Self-report(More)
Based on self-reported family histories, a sample of 1,270 adolescents were categorized into one of three groups: a) family history of alcoholism (FHA), b) family history of heavy drinking (FHHD), and c) family history symptom free (FHSF). These subjects were assessed on 26 measures tapping intra- and interpersonal competence at three points in time.(More)
This study tests the applicability of aspects of three theories of deviance--differential association, control, and strain--to the use of alcohol and drugs among a representative cross-section of 12-, 15-, and 18-year-olds. Regression analyses are conducted separately on each theory as well as on an overall model combining aspects of all three perspectives.(More)
Comparisons were made of estimates of the Wechsler Adult Intelligence Scale - Revised Full Scale IQ using the two-,three- and four-subtest linear equating procedures of Kaufman (1990) and Booker and Cyr (1986) with FSIQ estimates using prorating to obtain FSIQ scores. The advantage of prorating is that it affords greater clinical flexibility in selection of(More)
This study reports the results of factor analyses of COGNISTAT (NCSE) in a sample of elderly persons comprised of "healthy" participants with no psychiatric or neurological impairments (n = 153), individuals with psychiatric impairments (n = 70), and those with neurological impairments (n = 80). Our findings support a unitary factor structure for COGNISTAT,(More)
Data concerning alcohol and drug abuse and dependence, depression, and antisocial behaviors, among both subjects and their parents, were obtained from a community sample of 1,201 young adults. Although 35% of the sample exhibited alcohol abuse or dependence, 14% marijuana or cocaine abuse or dependence, and 22% reported a parent positive for alcoholism,(More)
The purpose of this study was to describe how parents and guardians in rural South Africa reported on the development of their children, their perception of social support and satisfaction, their level of depression, and the relationships that exist among the variables. The data from a larger research study were used to answer these questions: Is there a(More)
  • 1