The effect of sex education on adolescents' use of condoms: applying the Solomon four-group design.

Institute of Psychology, University of Oslo, Norway.
Health education quarterly 03/1996; 23(1):34-47. DOI: 10.1177/109019819602300103
Source: PubMed

ABSTRACT A school-based sex education program was developed in order to prevent sexually transmitted diseases and unwanted pregnancies. A Solomon four-group design, with random assignment to the different conditions, was used to evaluate an intervention based on cognitive social learning theory and social influence theory. The main goal of the intervention was to increase use of condoms. A stratified sample of 124 classes (2,411 students) was drawn at random from all the upper secondary schools (high schools/colleges) in one county in Norway. The results indicate a consistent interaction between pretest and intervention, which seems to have an effect on condom use. Pretest or intervention alone did not contribute to this effect. The interaction effect appeared among the students with few sexual partners. Several possible explanations to the observed interaction effect and the implication for future interventions are discussed.

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    01/2000; Centre for Adolescent Health.
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    ABSTRACT: The purpose of this paper is to study alcohol consumption among Norwegian adolescents at their most recent experience of sexual intercourse. The material comprises a stratified sample of 920 adolescents aged 16–20 years in a Norwegian county (52.3% of the girls and 41.4% of the boys had coital experience). Data were collected by means of questionnaires; 21.0% of the adolescents reported sex under influence of alcohol. A logistic regression analysis showed that the best predictors of sex under influence of alcohol were intercourse location, sexual enjoyment and sexual intercourse motivated by “Don't know, it just turned out that way”. Adolescents who had their most recent experience of intercourse away from home, who had problems enjoying sex and/or who said it just turned out that way, were more likely than others to have had sex under influence of alcohol. A multivanate logistic regression analysis showed that among adolescents who reported that the intercourse took place away from their homes, the odds ratio (OR) for sex under influence of alcohol increased by 8. 7. Those who had consumed alcohol before sex, more often than non-drinkers, tended to enter into sexual intercourse motivated by factors external to their own person. This tendency was more pronounced among boys than girls.
    Addiction 07/1996; 91(7). DOI:10.1046/j.1360-0443.1996.9179956.x · 4.60 Impact Factor
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    ABSTRACT: The aim of this study is to evaluate the effect of an intervention designed to prevent unwanted preg-nancy in adolescents. A stratified sample of 74 compulsory schools was drawn at random from all compulsory schools in the county of Nordland in northern Norway. Of these 54 schools were willing to participate. The participating schools were assigned to four different groups according to a Solomon four-group design. A total of 1183 pupils gave their informed consent for participation. For the intervention, a textbook in sex education was developed and handed out to pupils and teachers participating in the intervention groups. Data collections were carried out 1999–2001. The results from this study stem from data collected at post-test 1. The individual was used as unit of analysis. Among adolescents who made their coital debut between the pre-test and post-test 1, more of those in the intervention group than in the pre-test group reported use of contraception during first sexual intercourse. No other statistically significant effect of the intervention was found. The reason may be biased drop-out.


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Jun 16, 2014