<![CDATA[This research is aimed at developing and validating instruments to measure ecoliteracy capabilities, so that this research can produce a product in the form of a measurement instrument that has been validated and is used for measuring the ability to ecoliterate students. This research and development uses the ADDIE development method. This instrument is based on the Basic Competence of Class X Biology lessons, which consists of three dimensions of ecoliteracy. Based on 30 issues developed, there are 18 right and 12 wrong. The results of the analysis were obtained 15 questions on the dimension of knowledge, 2 questions about the dimensions of concern, and 1 questions about practical competence dimensions. Based on the differential power test, there were six bad criteria, six sufficient, three good and three very good criteria. The empirical validation was conducted by conducting trials on 36 students in the 11th grade of Mother of the Holy Heart High School in Jakarta, which were then analyzed using Pearson Product Moment correlation. The reliability test result was 0.80 using the Kuder Richardson-20 (KR-20) formula that falls within the very high criteria. It shows that the ecoliteracy measurement instrument developed is worthy of use to the students.]]>
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