Penerapan Model Problem Based Learning Berbantuan Laboratorium Virtual PhET Untuk Meningkatkan HOTs Siswa SMA

Application of Problem Based Learning Model Assisted by PhET Virtual Laboratory to Improve HOTs of High School Students

Penelitian ini dilaksanakan untuk mengidentifikasi peran model Problem Based Learning (PBL) berbantuan laboratorium virtual PhET dalam meningkatkan HOTs siswa SMA. Penelitian ini berjenis penelitian kuantitatif beserta Pre-Experimental sebagai metode penelitian yang berbentuk one group pretest-posttest design. Tempat pelaksanaan penelitian di SMAN 17 Surabaya secara daring pada semester ganjil tahun pelajaran 2021/2022 dengan sampel penelitian 30 siswa kelas X MIPA 5 yang dipilih melalui teknik simple random sampling. Data penelitian ini dikumpulkan melalui metode tes tertulis berbentuk soal esai dengan kategori HOTs yang diuji validitas terlebih dahulu sebelum diterapkan dalam pembelajaran. Teknik analisis data dilaksanakan melalui uji normalitas, uji homogenitas, dan uji hipotesis melalui software SPSS 25 dengan taraf signifikansi sebesar 5% serta uji N-gain untuk mengidentifikasi level peningkatan HOTs peserta didik. Hasil analisis data menunjukkan bahwa data sampel homogen dan terdistribusi normal sehingga uji hipotesis dilakukan menggunakan Paired-Samples T-test dengan hasil nilai signifikansi (2-tailed) kurang dari 0,05 sehingga disimpulkan bahwa terdapat pengaruh model PBL berbantuan laboratorium virtual PhET pada peningkatan HOTs peserta didik dengan level peningkatan sedang dan N-gain 0,56.

Kata kunci: PBL, Laboratorium Virtual, PhET, HOTs

This research was conducted to identified the effect of the PBL model assisted by the virtual PhET laboratory in increasing the HOTs of high school students. This research is a quantitative study with a Pre-Experimental method using a one-group pretest-posttest design carried out online at SMAN 17 Surabaya in the odd semester of the 2021/2022 academic year with a research sample of class X MIPA 5 selected through simple random sampling. It collected data through a written test in an essay in the HOTs category, which is tested for validity first. The data analysis technique was carried out using normality, homogeneity, and hypothesis testing through SPSS software. With a significance level of 5% and the N-gain test to identify the increase in students' HOTS. The results of data analysis identified that the data was homogeneous and normally distributed, so that hypothesis testing was carried out using Paired-Samples T-test with the results of a significance value (2-tailed) > 0.05 so it can be concluded that the PBL model assisted by the PhET virtual laboratory affects increasing the HOTs of students with medium improvement level and 0.56 N-gain.

Keywords: PBL, Virtual Lab, PhET, HOTs