Development of Web-based Assessment Applications to Improve Teacher Performance in the COVID-19 Period

This study aims to develop a website-based assessment application to improve teacher performance during the COVID-19 pandemic. They are using research methods with a quantitative approach. Data collection techniques were carried out by distributing questionnaires via a google form. The participants involved were 100 teachers throughout West Java. The media expert validation test results show that the application has an excellent feasibility level with a percentage of 84%. Material expert validation gets a ratio of 85%. The user expert validity level receives a rate of 93%. The cumulative results from the three experts obtained a validity percentage of 87% and were included in the excellent category so that the Web-based assessment application was feasible to use. Paired sample t-test analysis showed that the application of the application could increase the effectiveness of the assessment with a t-test value (p = 0.000, n (100) = 15.569,