Abstract
This article aims to explore the component of environmental physical sustainability knowledge index among Malaysian youths using exploratory factor analysis (EFA). The respondents consisted of 100 Malaysian youths who were selected using purposive sampling techniques. A questionnaire on a scale of 1 to 5 Likert has been used to get feedback. The results showed that the products in each study build achieved acceptable reliability with a Cronbach Alpha value higher than 0.70 and met the requirements for a normality test. The data is then processed using the appropriate EFA grouping of constructive items. The results have identified four main components of Malaysian youth environmental sustainability knowledge from 69 questionnaire items, namely lithosphere, hydrosphere, atmosphere, and biosphere. This finding also meets the requirements of the specified index value (Kaiser-Meyer-Olkin and Bartlett’s Test of Sphericity). This proves that these four components should be considered in the development of instruments to assess the environmental sustainability knowledge index among Malaysian youths.
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