Analaysis of Students’ Misconceptions on Structure and Function of Cell Organelle Using the Four-Tier Diagnostic Test

The purpose of this research is to analyze misconceptions in high school students on the subject structure and function of cell organelles using a four-tier instrument diagnostic test at Senior High School 71 Jakarta. This study's sample was 97 students senior high school of class XI mathematics and science in the academic year 2019/2020 at 71 Senior High School Jakarta. The method used in this research was mixed methods and sequential explanatory model. The research method used is a descriptive survey. Survey data obtained from the test of instruments four-tier diagnostic test and the interviews with the respondents. Instruments developed in this research is 21 items and then tested for validity and reliability. The validity test obtained 18 instruments is valid at the level of 5% with a reliability value of 0,79, meaning that the four-tier diagnostic test instrument can be used to analyze student misconceptions. Misconceptions occur in cell structure and organelles' subconcepts, cell organelle functions, peroxisomes and lysosomes, organelle cell and plant cell functions, and structural differences between animal cells and plant cells. The highest misconception occurred in the sub-concept of structure and cell organelles as much as 35.22%. The lowest misconception occurred in the sub-concept of structural differences between animal cells and plant cells of 9.28%.