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Positive Prevention PLUS

Study Findings

Evidence by Outcome Domain and Study
Citation Sexual Activity Number of Sexual Partners Contraceptive Use STIs or HIV Pregnancy

LaChausse 2015

LaChausse 2016

 Uniformly positive impacts across the outcomes examined in this domain Uniformly positive impacts across the outcomes examined in this domain Uniformly null impacts across the outcomes examined in this domain
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Detailed Findings
CitationDetails

LaChausse 2015

LaChausse 2016

This study evaluated the program using a clustered randomized controlled trial involving 21 high schools within six school districts in southern California. Eleven schools were randomly assigned to a treatment group that offered the Positive Prevention PLUS program in 9th grade classes. Ten schools were randomly assigned to a control group that offered their regular instruction. Surveys were administered immediately before the program (baseline) and roughly one, six, and 12 months after the end of the program.

The study found that six months after the program ended, students in the schools that offered the program were significantly less likely to report they ever have had sexual intercourse and that they have had sex in the past three months without using birth control. This study found no statistically significant program impacts on having being pregnant (or gotten someone pregnant) at the time of the six-month follow-up.
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Notes

Some study entries may include more than one citation because each citation examines a different follow-up period from the same study sample, or because each citation examines a different set of outcome measures on the same study sample. A blank cell indicates the study did not examine any outcome measures within the particular outcome domain or the findings for the outcome measures within that domain did not meet the review evidence standards.

Information on evidence of effectiveness is available only for studies that received a high or moderate rating. Read the description of the review process for more information on how these programs are identified.

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