Research Design An RCT was conducted in a pediatric hospital under the supervision of pediatricians and inexperienced researchers. The RCT focused on early screening for obesity and the implementation of USPSTF standards. The authors experimented to determine whether doctors are following the USPSTF standards that are universally recommended for doctors. The authors call their study a project, and investigators and doctors randomly selected a group of children for it. Physicians were challenged to carefully screen these children when they visited the hospital, whether for routine or emergency visits. The study’s design is considered quasi-experimental, as the authors included the results of a survey of physicians in the conclusions of the study. Completing this survey was the last step in the study. Doctors had to measure the body weight and height of the child carefully; this data must be documented. The single-case design was that each child in a group of 60 children presented to the doctor for screening. After screening, the child received no advice unless the physician found obese. If a child was overweight or obese, doctors immediately gave recommendations to him, and doctors could communicate with his family on this topic. The group of 60 children received much more suggestions and more careful supervision from the study than before. The authors conducted qualitative research, which first ascertained screening quality in a pediatric hospital before the intervention. Secondly, the authors aimed to improve the quality of screening in the hospital and increase the likelihood of detecting a tendency to obesity in children. The study involved 60 children from six to 16 years old (boys and girls); their electronic medical records were selected by physicians and subjected to careful screening. The study’s design is similar to the authors’ goals and differs from the more theorized studies of Umer et al. (2017) and Ward et al. (2017). An extensive literature review was not necessary for the authors; however, they gave a vivid introduction about childhood obesity at the beginning of the article, in general, citing statistical data. If the authors had expanded the sample, the design would have changed accordingly, and perhaps they would have chosen a more mathematical strategy. Data Collection Type The authors developed a questionnaire for physicians participating in the intervention. The questionnaire was supposed to record the successes or failures of the study, in the opinion of pediatricians. The authors suggested that doctors complete the questionnaire once; the survey consisted of five questions, and it can be assumed that it was easy to complete. The authors were interested in whether the results achieved will help improve patients’ lives later. Questions in the questionnaire were closed and required an affirmative or non-affirmative answer. Sometimes it was necessary to show a degree of agreement or a degree of denial, as, for example, in the options where the authors suggested the answer ‘completely effective’ or ‘hardly did.’ Physicians answered the questionnaire in paper form, but instead of interviews, the authors conducted instructions with physicians before the intervention;