The study objective was to investigate the impact of an educational digital storytelling intervention (EDSI) on human immunodeficiency virus (HIV) risk perception and knowledge among Nigerian adolescents. Methods: Using a randomized controlled trial design procedure, we recruited 98 Nigerian adolescents who were college students. Data were collected using the Perceived Risk of HIV Scale and the HIV Knowledge Questionnaire and were analysed using repeated measures analysis of variance. Results: The results showed that the EDSI was effective in increasing HIV risk perception and knowledge among adolescents in the treatment group compared with those in the no-treatment control group.

Background: This study determined the effectiveness of a rational emotive behavioral therapy (REBT) intervention on knowledge of risks of hypertension among university lecturers in South-east geopolitical zone of Nigeria. Methods: The study used a group randomized controlled trial design to group the participants into treatment group and a waiting-list control group and the hypertension knowledge questionnaire and the Perceived Risks of Hypertension Questionnaire to collect a pretest, posttest, and follow-up data of this study. The sample of the study was 84 university lecturers in public universities in Southeast Nigeria (University of Nigeria, Nsukka, Enugu State, Nnamdi Azikiwe University, Awka, Anambra State) who satisfies the requirements to participate in the study. The study lasted for 10 weeks. The data collected for the study were analyzed using repeated measures ANOVA and t test statistics. Results: The findings of this study were that REBT health educational intervention effectively increased the education foundation and business education lecturers’ knowledge and perceived risk of hypertension compared to participants in waitlist group. Lastly, the outcomes of the follow-up measures indicate that the increased knowledge and perceived risks of hypertension acquired during the training program was sustained by the treatment group one month after the end of program. Conclusion: The REBT health educational intervention program could be utilized to increase knowledge and perceived risks of hypertension among university lecturers in public universities in Southeast Nigeria.