PENGARUH MODEL PROBLEM BASED-LEARNING TERHADAP KETERAMPILAN BERPIKIR KRITIS SISWA KELAS X IPA SMA NEGERI 1 SINGARAJA TAHUN AJARAN 2013/2014
DOI:
https://doi.org/10.23887/jjpf.v1i1.2999Abstract
Penelitian ini bertujuan menganalisis perbedaan keterampilan berpikir kritis antara siswa yang belajar dengan menggunakan model Problem Based-Learning (MPBL) dan siswa yang belajar dengan menggunakan model Direct Instruction (MDI) dalam pembelajaran Fisika. Jenis penelitian ini adalah penelitian eksperimen semu (quasi exsperiment) dengan rancangan non-equivalent pretest-posttest control group design. Populasi dalam penelitian ini adalah siswa kelas X IPA SMA Negeri 1 Singaraja yang terdiri atas X IPA3, X IPA4, X IPA 5, X IPA 6, X IPA 7, dan X IPA8 pada semester genap tahun ajaran 2013/2014 dengan jumlah siswa 210 orang. Sampel kelas diambil dengan teknik simple random sampling. Sampel penelitian ini terdiri dari dua kelas yaitu X IPA7 sebagai kelas eksperimen dengan jumlah siswa 34 orang dan X IPA4 sebagai kelas kontrol dengan jumlah siswa 38 orang. Data yang diambil dalam penelitian ini adalah keterampilan berpikir kritis siswa yang dikumpulkan melalui tes keterampilan berpikir kritis. Bentuk tes yang digunakan adalah essay yang berjumlah 10 butir. Data dianalisis menggunakan statistik deskriptif dan ANAKOVA. Uji lanjut ANAKOVA menggunakan Least Signifikan Difference (LSD) untuk menguji komparasi skor rata-rata tiap kelompok perlakuan. Semua pengujian hipotesis dilakukan pada taraf signifikansi 0,05. Hasil penelitian menunjukkan terdapat perbedaan keterampilan berpikir kritis antara siswa yang belajar dengan menggunakan model PBL dan model DI (F =4,707 p < 0,05). Hasil uji lanjut LSD menunjukkan bahwa keterampilan berpikir kritis siswa yang belajar dengan model PBL lebih tinggi dibandingkan model DI (LSD = 0,754; Δμ =0,878). Dengan demikian, keterampilan berpikir kritis siswa yang belajar dengan model PBL (M = 73,02) lebih baik dibandingkan keterampilan berpikir kritis siswa yang belajar dengan model DI (M = 70,80 ).Kata Kunci : Model Problem Based-Learning, model Direct Instruction, keterampilan berpikir kritis.
The aim of this research was to analyze the difference of critical thinking skill between group of students who facilitated by problem based-learning model and group of students were facilitated by direct instruction model in physics learning. This research was quasi exsperiment with non-equivalent pretest-posttest control group design. The population of this research was 210 students of grade X IPA of SMA N 1 Singaraja which consisted X IPA3, X IPA4, X IPA 5, X IPA 6, X IPA 7, and X IPA8 at even semester of academic year 2013/2014. Class sample was taken by simple random sampling technique. Sample of this research consisted of two class, where X IPA7 as experiment class with the number of students 34 and X IPA4 as control class with the number of students 38. Date which taken in this research was critical thinking skill of students which obtained through critical thinking skill test. Kind of the test which used was essay which the number of the test were 10. Date was analyzed by using descriptive statistic and ANACOVA. Continue test used Least Signifikan Difference (LSD) in order to exam the comparation of average score of each treatment group. All of the hipotesis examination was done at 0,05 significant level. The result of this research gives an implication that had the difference of critical thinking skill between group of students who learned by using PBL model and group of students who learned by using DI model. (F =4,707 p<0,05). The result of continue examination test LSD indicated that critical thinking skill group of students who learned by using PBL model was higher than group of students who learned by using DI model (LSD = 0,754; Δμ =0,878). Therefore, critical thinking skill group of students who learned by using PBL model (M = 73,02) was better than critical thinking skill group of students who learned by using DI model (M = 70,80).
keyword : Problem Based-Learning model, Direct Instruction model, critical thinking skill.
Published
2014-06-20
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