<![CDATA[In the Curriculum 2013, there are three aspects of assessment, namely knowledge, skills, and attitudes. The purpose of this development research is to produce and determine the level of content validity of the conceptual understanding assessment instrument on Higher Order Thinking Skills (HOTS), science process skills, and attitudes toward science on hydrocarbon and petroleum. This development research was designed with 3D from 4D model which consists of defining, designing, and developing. The results of content validity to assessment instrument by three validators show that 77 of 90 conceptual understanding items are categorized as HOTS with very valid criteria (90.91—100%), 60 science skills processing skills items with very valid criteria (94.70—100%), 55 statements about attitudes toward science with criteria very valid (86,67—100%), and product performance of assessment instrument with criteria very valid (91,67%).]]>
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