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UNESCO HIV and Health Education Clearinghouse

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  1. Mediation analysis of an adolescent HIV/STI/pregnancy prevention intervention

    Most interventions designed to prevent HIV/STI/pregnancy risk behaviours in young people have multiple components based on psychosocial theories (e.g. social cognitive theory) dictating sets of mediating variables to influence to achieve desired changes in behaviours. Mediation analysis is a method for investigating the extent to which a variable X (e.g. intervention indicator) influences an outcome variable Y (e.g. unprotected sex) by first influencing an intermediate variable M (e.g. …

  2. Rethinking how to prevent HIV in young people: evidence from two large randomised controlled trials in Tanzania and Zimbabwe

    The MEMA kwa Vijana (Tanzania) and Regai Dzive Shiri (Zimbabwe) adolescent sexual and reproductive health intervention trials focused on developing skills and changing attitudes and self-efficacy to change behaviours. The trials show a clear gap between young people's knowledge, and their reported attitudes and behaviour. …

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