Training Higher Order Thinking Skills (HOTS) and the Ability to Design Experiments through the Inquiry Lab

. The research entitled Training Higher Order Thinking Skills (HOTS) and the Ability to Design Experiments through the Inquiry Lab aims to determine critical thinking skills and analytical skills, as well as the ability to design experiments through the application of Inquiry Laboratory models, has been carried out on several selected samples in Kuningan Regency. The target of this research includes information about critical thinking skills, analytical skills, and the ability to design experiments as well as their relationship with the application of the Inquiry Lab. The research method used is experimental research with the One Shoot Case Study design. The sampling technique used purposive sampling. Data were obtained using tests for critical thinking skills, analytical skills, and the ability to design experiments accompanied by rubrics. Several students of Biology Education Study Program level II, level IV, and students in high schools were involved in the research as a sample. The research data were analyzed using a partial t-test, correlation test, and N-Gain. The results of research related to critical thinking skills, analytical thinking, and the ability to design experiments show that there are differences before and after the implementation of the inquiry laboratory model with a sig. (2-tailed) value of 0.000 < 0.05 (α = 0.05) and the value N-Gain overall in the medium category. The aspects of critical thinking skills and analysis that are measured are positively correlated with the application of the Inquiry Lab. The ability of critical thinking skills has a medium correlation with a correlation value of 0.375 and the ability of analytical thinking skills has a strong correlation with a correlation value of 0.748. The various abilities to design experiments in each of the measured aspects indicated a varying increase, as well as a positive correlation with a very strong category between the application of the Inquiry Lab model and the ability to design experiments indicated by a correlation value of 0.904.