Abstract :
This study was conducted to see the effect of video on increasing adolescent
knowledge about the guidelines for balanced nutrition at SMA Budi Mulia Jakarta.
In this study, using a Pre Experimental Design with a one group pretest postest
design. Respondents were randomly selected using the Stratified Random Sampling
technique, and the data were collected by filling out an online questionnaire. This
research was conducted using video containing 10 messages on balanced nutrition,
the benefits of implementing balanced nutrition guidelines and the impact of a lack
of knowledge on balanced nutrition. Statistical analysis of data using t-dependent
test. The results of the t-dependent test showed that there was an increase in the
average value of knowledge before and after the video screening by 20.18. In this
study, playing the video about balanced nutrition can increase the average
knowledge of adolescents by 20.18 or 35.52%. Based on the statistical test, it was
obtained that the P value was 0.000 (P <0.05) so that it could be concluded that
there was an influence between the knowledge before and after the video playback.