CD Tesis

Pengembangan Instrumen Tes Untuk Mengukur Kemampuan Pemecahan Masalah Dan Literasi Sains Peserta Didik Kelas XI Pada Materi Kesetimbangan Ion dan pH Larutan Garam

---

Based on PISA data involving 81 countries, students' scientific literacy in Indonesia is ranked 68th in the PISA scientific proficiency measurement. To improve students' scientific literacy skills, it is necessary to develop assessment instruments in the form of scientific literacy instruments. Low scientific literacy among students will have an impact on students' ability to solve problems. Achieving real chemistry learning objectives requires the use of assessment instruments that not only include memorization and understanding but also require assessments that train students' problem-solving skills and scientific literacy. Based on the results of interviews and observations at SMA Negeri 1 Pekanbaru, SMA Negeri 12 Pekanbaru and SMA Negeri 15 Pekanbaru, information was obtained that; (1) most of the questions used are adopted from several sources and are not the result of their own development, (2) most of the test questions given to students are questions in the form of multiple choice, medium and low thinking abilities, while high level thinking questions high or low (3) the test questions used to measure scientific literacy and problem solving abilities have never been carried out, where the teacher directly gives the questions directly using formulas without any analysis of the questions (4) The teacher has implemented a problem-based learning model in the questions used teachers have not implemented problem solving ability and scientific literacy test instruments, the questions used are still C2 and C3. (5) the material on ionic balance and solution pH is material that is difficult for students to understand because it combines understanding of the material and calculations so that students are not used to analyzing.
This research aims to develop a valid and reliable instrument for assessing students' problem solving and scientific literacy on ionic equilibrium in salt solutions and to determine the differences in the results of measuring problem solving abilities and scientific literacy on ionic equilibrium and ph of salt solutions at high, medium, and low schools.
This research uses the Research and Development (R&D) method, adapted from the Borg & Gall Model, which consists of 10 development steps that are implemented in step 9 of the final product. The initial product was validated by three chemistry expert lecturers. This research involved 3 senior high schools (SMA) in Pekanbaru with high, medium, and low levels, namely SMA Negeri 1 Pekanbaru, SMA Negeri 12 Pekanbaru, and SMA Negeri 15 Pekanbaru. The data collection instruments in this research were validation questionnaires, user response questionnaires, and assessment instruments in the form of choice questions.
The instrument for assessing problem-solving abilities and scientific literacy that was developed was declared valid in terms of construct validity; there were 16 valid questions out of the total number of questions. The questions developed have met the reliability requirements with a Cronbach alpha coefficient value greater than 0.6, namely 0.874. The level of difficulty of the questions is in the easy, medium, and difficult categories; that is, 25% of the questions are in the easy category, 50% of the questions are in the medium category, and 25% of the questions are in the difficult category. And the differentiating power of the questions is in the very good, good, and sufficient categories. The percentage of differentiating power of the questions obtained from the 16 questions analyzed was 12 items in the very good category (75%), 2 items in the good category (12.5%), and 2 items in the sufficient category (12.5%). In terms of content validity, Aiken's validation value (V) ranges from 0.88 to 0.97.
Based on the researchers' considerations and discussions with the supervising lecturer, the questions tested on students were 10; this was seen from the achievement of learning indicators in the material on ionic balance in salt solutions and the planned allocation of time for carrying out the test. The instrument for assessing problem-solving ability and scientific literacy in the readability aspect is in the very good category, in the aspect of time adequacy in the good category, and in the feasibility aspect in the very good category. The results of measuring problem-solving abilities and scientific literacy regarding ion equilibrium in salt solutions for 75 students in high, medium, and low schools show that there are very significant differences in problem-solving abilities and scientific literacy among students, where the differences are in the high, medium, and high school categories. low with a significance value of 0.001, which is smaller than 0.05, then H¬o is rejected, meaning that there is a significant difference between the problem-solving ability and scientific literacy of school students in the high, medium, and low categories of problem-solving ability and scientific literacy that have been developed.
The instrument for assessing students' problem-solving abilities and scientific literacy on ionic equilibrium material in salt solutions was declared valid and reliable. Instruments for assessing students' problem-solving abilities and scientific literacy on ionic equilibrium material in salt solutions can be used to measure problem-solving ability and scientific literacy on ionic equilibrium and pH of salt solutions.
Keywords: assessment instruments, problem solving skills, scientific literacy, ionic equilibrium and pH of salt solutions.

---

Ketersediaan

Informasi Detail

Judul Seri

-

No. Panggil

2010242051

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Pendidikan Kimia., 2024

Deskripsi Fisik

-

Bahasa

Indonesia

ISBN/ISSN

-

Klasifikasi

2010242051

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

PENDIDIKAN KIMIA

Info Detail Spesifik

-

Pernyataan Tanggungjawab

Jaka

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar