| Summary: | The current study presents an overview of studies investigating educational research instruments development. This study only discusses similar topics in instrument development. The instrument discussed is the assessment of perspective on inclusive education. This research adopted a literature review approach. There are seven research stages: beginning the article, relevant literature identification, review structuring, tone structuring, tense structuring, theoretical development, and evaluating. The current study indicates four main steps in the research and development method: data collection, planning, initial product development, and validation. Simultaneously, the revision or feedback process must be integrated with each step. Research and development is a cycle, so the product development results must be continuously reviewed to remain appropriate and solve current problems. Thus, with the sustainable instrument development method, ideas and innovations in education can be realized.
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