This study aimed at developing a backhand serve test model for junior badminton athletes. The research method used was a research and development method. The samples of the study were more than 120 athletes divided into ten badminton clubs in Central Java. This study involved academics and badminton practitioners with an excellent design validation score that reached an average score more than 3.5. The product of the research was Backhand Serve Test Model development, which was equipped with the test norms for junior badminton athletes. The Short Serve Test validity score was 0.702 and the reliability of the test score was 0.910. The developed Serve Test model is proven suitable to be used for measuring the serve skills of junior badminton athletes, because the samples of this study were athletes aged 15-18 years. Of course, the developed test model will be useful as a measuring tool for the backhand serve test for junior badminton athletes at the regional level.

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This research aimed to determine the effect of the different methods of regular drill and combination drill a high and low hand-eyes coordination exercise on the accuracy of a badminton athlete's jumping smash. This research was an experimental research with 2 x 2 factorial design. The research sample was 20 athletes in PB. ABS and PB. Indoraya Wonosobo, taken with a random sampling technique of 37 athletes. Instrument for measuring the jumping smash was a  Forehand Smash Test. The instrument for measuring the hand-eyes coordination was a throw and catch a tenis  ball test. Data analysis technique used was two-ways ANAVA at significant level α = 0.05. The results of the research are as follows. (1) There were  significant differences in the effect of regular drill and combination drill method exercise on the accuracy of the athlete's badminton jumping smash. (2) There was a significant difference of influence of players who had the high hand-eyes coordination and the low hand-eyes coordination on the accuracy of the jumping smash. (3) There was a significant interaction between the regular drill and the combination drill exercise method and the high and low hand-eyes coordination on the accuracy of the athlete's jumping smash

The objectives of Physical Education include three aspects: cognitive, psychomotor, and affective. However, the Coronavirus 2019 outbreak is sweeping. The purpose of this study was to evaluate learning outcomes of Physical Education during the COVID-19 pandemic. This type of research is qualitative, the source of data for this study are Teachers, Students, and Parents. Data collection methods use observation, interviews, and documentation. Data analysis uses the triangulation method. Based on research, in the cognitive realm, primary school learning outcomes are 70%, junior high 75%, and high school 85%. The Psychomotor Domain, for Elementary School, is 45%, Middle School 60%, and High School 75%. And in the Affective domain, for Elementary School is 15%, Middle School 30%, and High School 65%. This study concludes that learning outcomes during a pandemic are not optimal. Suggestion: the government provides equipment lending services to students who do not have and provide internet network facilities.

To determine how much the exercise program success rate, a valid and reliable test tool is needed. In this study, the researcher aims to develop a smash skill test model in badminton. The method in this study is a development research method with a sample size of 121 athletes. The steps taken in this research include (1) preliminary study (literature study and field study), (2) planning (conducting analysis), (3) initial draft design, (4) validation of the draft, (5) testing of group products minor and revisions, (6) large group trials and revisions, (7) final results. This study involved academicians and badminton practitioners with an “excellent” rating, which reached an average score of 3.66. This result research is a product of the development of a smash skill test model in badminton. This study concludes that the smash skill test’s resulting form is valid and reliable, with a validity score of 0.688 and reliability of 0.870.