Abstract: This purpose of this study is to determine: differences in cognitive learning outcomes of students
who have high critical thinking skills and low. The study population was students of X science class
in one of the state high schools in Lombok Tengah Regency, NTB, Indonesia, which amounted to 18
schools. The research sample was selected by purposive random sampling. Cognitive learning
outcomes and critical thinking are measured using essay tests. The results of testing the validity and
reliability of tests of cognitive learning outcomes and critical thinking show valid and reliable
results. Data were analyzed using One-Way ANOVA. The results showed that: there is a significant
difference in cognitive learning outcomes between students who have high critical thinking skills and
low critical thinking skills. Student cognitive learning outcomes are higher in students with high
critical thinking than students with low critical thinking.
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