The Effect of Breastfeeding Education Using the Pecha Kucha Technique on Breastfeeding Self-Efficacy and Breastfeeding Success in the Early Postpartum Period: A Randomized Controlled Trial

Breast milk is considered the most biologically appropriate source of nutrition, essential for the healthy growth and development of newborns. Thanks to its optimal nutrients, immunological factors, and growth regulators, it not only meets nutritional needs but also protects against infections, reducing neonatal morbidity and mortality rates. The Pecha Kucha presentation technique keeps presentations concise and dynamic, creating a fast-paced, light, and engaging experience. It minimizes distractions and maximizes engagement. Because there is no text to read in the Pecha Kucha technique, presenters are required to be more prepared and strive to create a coherent narrative, resulting in a flawless narrative. Thus, the aim is to ensure the success and effectiveness of breastfeeding education with this technique, and ultimately, to promote breastfeeding education using the Pecha Kucha technique to healthcare professionals. The population of this randomized, controlled experimental study consists of primiparous postpartum women who gave birth in the Obstetrics Department of the Physical Therapy Annex Building of the Gaziosmanpaşa Training and Research Hospital at the University of Health Sciences. A power analysis was conducted using the G\*Power package program, Version 3.1.9.4, to determine the sample size of the study. Because no similar research was found in the literature, Cohen's medium effect size was chosen as the effect size, anticipating that tests assessing the difference between two independent groups would be used when examining the differences in variables between the control and intervention groups. Accordingly, with 64 participants in the control group and 64 in the intervention group, a power of 80% was calculated at a significance level of 0.5 (medium) effect size and 0.05, and a minimum sample size of 128 was determined. The study, planned using an experimental design, is planned to be conducted on two groups: an intervention and a control group. With