This study aims to produce a product to evaluate students' critical thinking skills that departs from physics content where students often have misconceptions. This research is a development research with research stages covering a) research and review literature; (b) planning chapter objectives; (c) developing a preliminary form; (d) field-testing the preliminary form; (e) Revise the preliminary form; (f) conducting a main field-test. The Waves Critical Thinking (WCT) test developed consists of 7 questions with 15 specific domains. Total percentage of content validity test was obtained 87.98% with appropriate criteria and based on the construct validity WCT test, the Goodness of Fit criteria were obtained which were classified as fit. The test instrument being tested consists of 15 objective items. The reliability of WCT test results 0.597 as a Cronbach's alpha score with the medium category and all the components have a good level of composite reliability. The outcome of the study was the WCT test with a valid state for measuring students' CT in a specific domain of physics wave material.

The swift widespread shift from face-to-face to emergency remote teaching (ERT) due to the COVID-19 pandemic was accompanied by numerous technical, psychological, and pedagogical challenges and prompted educators to look for ways to improve their performance to preserve the high quality of learning. One way to do this is for teachers to adopt charismatic behaviours. This study aims at investigating the concept of and factors determining teachers’ charisma and its connection with students’ intrinsic motivation and perceived learning in a synchronous online learning setting during ERT. The questionnaires measuring students’ intrinsic motivation, perceived learning, and teachers’ charisma were used to collect the responses from Ukrainian university students who reported on their online learning experienced amid the COVID-19 pandemic. The Varimax rotation method was applied to determine the factors of charisma. Correlation analyses established a connection between students’ intrinsic motivation and perceived learning and teachers’ charisma as well as each factor of charisma independently. The research is the first of its kind done in an online learning setting in an Eastern European cultural context. The research validates some previous findings done in a face-to-face teaching context. The current study also established the connection between humor and empathy as a factor of charismatic teaching.