<![CDATA[Background: Limited knowledge and self-efficacy may hinder lay rescuers from providing basic life support (BLS). Educational videos offer a practical way to demonstrate BLS procedures in a community setting. Purpose: To examine immediate changes in BLS knowledge and self-efficacy among members of the REMAPI Gondangrejo youth organization following video education. Method: This pre-experimental one-group pretest-posttest study included all 40 members of the accessible population through total sampling. Participants watched a 7-minute 14-second BLS educational video once and completed the posttest five minutes later. Knowledge was assessed using a 15-item questionnaire and self-efficacy using an 8-item questionnaire. Knowledge scores were analyzed using a paired-samples t-test, while pretest-posttest self-efficacy was analyzed using a marginal homogeneity test. Results: Good knowledge was reported by 1 participant (2.5%) at pretest and increased to 26 participants (65.0%) at posttest. High self-efficacy increased from 1 participant (2.5%) at pretest to 24 participants (60.0%) at posttest. Mean knowledge scores increased from 40.10 ± 21.46 to 81.48 ± 11.82. Knowledge and self-efficacy both showed significant pretest-posttest changes (p = 0.001). Conclusion: BLS video education was followed by higher immediate knowledge scores and self-efficacy. Because the study had no control group and used an immediate posttest, the findings do not establish a causal effect, sustained retention, or practical BLS competence.]]>
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