scholarly journals PENGGUNAAN KITIN SEBAGAI ALTERNATIF FASE DIAM KROMATOGRAFI LAPIS TIPIS DALAM PRAKTIKUM KIMIA ORGANIK

Vidya Karya ◽  
2017 ◽  
Vol 32 (1) ◽  
Author(s):  
Syahmani Syahmani ◽  
Leny Leny ◽  
Rilia Iriani ◽  
Noor Elfa
Keyword(s):  
Stationary Phase ◽  
Plant Extract ◽  
Plant Extracts ◽  
Random Sampling ◽  
Research Method ◽  
Sampling Technique ◽  
Plant Sample ◽  
Shrimp Waste

Abstract. Utilization of chitin as a stationary phase of TLC to separate the compound components from plants had been carried out. The objective of this study was to investigate (1) the effectiveness of chitin as a stationary phase in TLC to separate the compound components of plants, and (2) composition of compounds in plant extracts that can be separated by chitin. Research method is experiment in laboratory. Sampling technique of plant extract (mahogany seed, turmeric rhizome, and pandanus leaf) using random sampling technique, while shrimp shrimp skin is shrimp waste from Indu Manis Banjarmasin factory. Data were analyzed descriptively qualitative. The results showed that chitin rendemen successfully isolated from shrimp skin was 36,44%. Chitin is effectively used as an alternative to stationary phase in TLC to separate the compound components from plant sample extracts (mahogany seeds, pandanus leaves, and turmeric rhizomes). Keywords: chitin, stationary phase of TLC, and separation of plant compound components. Abstrak. Telah dilakukan penelitian tentang pemanfaatan kitin sebagai fasa diam KLT untuk memisahkan komponen senyawa dari tumbuhan. Penelitian ini bertujuan untuk mengetahui (1) efektivitas kitin sebagai fasa diam pada KLT untuk memisahkan komponen senyawa dari tumbuhan, dan (2) komposisi senyawa dalam ekstrak tumbuhan yang mampu dipisahkan oleh kitin. Metode penelitian adalah eksperimen di laboratorium. Teknik pengambilan sampel ekstrak tumbuhan (biji mahoni, rimpang kunyit, dan daun pandan) menggunakan teknik random sampling, sedangkan kulit udang merupakan limbah kulit udang dari pabrik Indu Manis Banjarmasin. Data dianalisis secara deskriptif kualitatif. Hasil penelitian menunjukkan bahwa rendaman kitin yang berhasil diisolasi dari kulit udang sebesar 36,44%. Kitin cukup efektif digunakan sebagai alternatif fasa diam  pada KLT untuk memisahkan komponen senyawa dari ekstrak sampel tumbuhan (biji Mahoni, daun Pandan, dan rimpang Kunyit).  Kata Kunci: kitin, fase diam KLT, dan pemisahan komponen senyawa tumbuhan.

scholarly journals SULAM MOTIF FLORA DAN FAUNA DITINJAU DARI WARNA DAN KOMPOSISI

2020 ◽  
Vol 9 (1) ◽  
pp. 187
Author(s):  
Aisyah Ratna Dewi ◽  
Heri Soeprayogi ◽  
Sri Wiratma
Keyword(s):  
Junior High School ◽  
Random Sampling ◽  
Research Method ◽  
Sampling Technique ◽  
Fine Art ◽  
Class Viii ◽  
The Right ◽  
Art Elements ◽  
Color Composition ◽  
Cluster Random Sampling

AbstrakPenelitian ini bertujuan untuk mengetahui ketepatan siswa dalam memilih warna dan komposisi yang sesuai pada karya sulam teknik sulam bebas dengan motif flora dan fauna. Adapun populasi yang digunakan dalam penelitian ini adalah seluruh siswa kelas VIII-7 SMP Negeri 16 Medan dengan sampel 3 karya siswa dengan teknik Cluster Random Sampling. Metode penelitian yang digunakan adalah deskriptif kualitatif dengan mendeskripsikan karya sulam yang diteliti dan dinilai berdasarkan unsur seni rupa yang telah ditentukan yaitu warna dan komposisi. Secara keseluruhan kemampuan siswa SMP Negeri 16 medan dalam praktik menyulam dikatakan Cukup Baik. Siswa sudah memiliki kemampuan dalam menyatukan  motif-motif  yang  akan disulam  dan   hasil sulamnya pun rata-rata sudah  mendekati kategori cukup.Kata Kunci: sulam, warna, komposisi.AbstractThis study aims to determine the accuracy of students in choosing the right color and composition in the embroidery work of free embroidery work of free embroidery techniques with flora and fauna motifs. As for the population used in this study were all students of class VIII-7 junior high school 16 terrain with a sample of 3 students’ work using a random sampling technique. The research method used is descriptive qualitative by describing the work of embroidery that is examined and assessed based on predetermined fine art elements, namely color and composition. As a whole the ability of 16 field students in the field of embroidery is said to be quite good. Students already have the ability to unify the motif to be embroidered and results of embroidery are on average already close to the sufficient category. Keywords: embroidery, color, composition. 

The Effect of Compensation on Employee Performance at Kreasindo Jaya Abadi

FOCUS ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 80-83
Author(s):  
Elis Silmi ◽  
Rudy Susanto ◽  
Ismail Dwi Cahyo
Keyword(s):  
Linear Regression ◽  
Random Sampling ◽  
Research Method ◽  
Quantitative Research ◽  
Employee Performance ◽  
Sampling Technique ◽  
Linear Regression Equation ◽  
Simple Linear Regression ◽  
Performance Variable ◽  
Moderate Relationship

The purpose of this study was to determine the effect of compensation on employee performance. The method used is a quantitative research method with the number of samples used is 54 respondents. The sampling technique was done by random sampling. The results of the study: The correlation coefficient (rxy) was 0.46. This shows that there is a moderate relationship between the variables of Compensation and Employee Performance at Kreasindo Jaya Abadi; Compensation variable contributes to Employee Performance variable by 21.16% and the remaining 78.84% is contributed by other variables; We get a simple linear regression equation Y = 18.30 + 0.5082X. The results of the hypothesis analysis show the value of t count > t table (3.7353 > 1.6747), so H0 is rejected and Ha is accepted. So, it can be concluded that there is a significant influence between the Compensation variable and the Employee Performance variable.

SUSTAINABLE MANUFACTURING PRACTICES IMPLEMENTATION IN MALAYSIA INDUSTRIES

2015 ◽  
Vol 77 (4) ◽  
Author(s):  
Mohamad Ghozali Hassan ◽  
Norani Nordin ◽  
Hasbullah Ashari
Keyword(s):  
Random Sampling ◽  
Research Method ◽  
Quantitative Research ◽  
Sustainable Manufacturing ◽  
Implementation Strategies ◽  
Sampling Technique ◽  
Consumer Perceptions ◽  
Manufacturing Industries ◽  
Good Industry ◽  
Environmental Friendly

Implementation of sustainable manufacturing practices brings lot of gains and benefits not alone to the manufacturing industries but also to their immediate environment. Such benefits includes increase the manufacturing capacity, good industry image, environmental friendly product, enhance business profile, consumer perceptions and corporate reputation. Nevertheless, many manufacturing industries are still unable to properly implements sustainable manufacturing practices. Hence, this paper identifies the sustainable manufacturing practices among manufacturing industries. Data were collected based on quantitative research method using self-administered questionnaires. A total of 104 manufacturing industries were selected based on stratified random sampling technique and SPSS was used to analyze the data. The result identified some applicable and non-applicable factors that affect proper implementation of sustainable manufacturing practices among manufacturing industries. Thus, the study will assist manufacturing industries to strengthen their implementation strategies on sustainable practices.

PENGARUH KOMITMEN TUGAS PIMPINAN PERUSAHAAN DAN BUDAYA ORGANISASI KARYAWAN TERHADAP EFEKTIVITAS KERJA KARYAWAN PADA CV TRIKARSA UTAMA

2020 ◽  
Vol 2 (1) ◽  
pp. 41-66
Author(s):  
Agung Prasetyo
Keyword(s):  
Organizational Culture ◽  
Random Sampling ◽  
Research Method ◽  
Work Motivation ◽  
Regression Coefficient ◽  
Sampling Technique ◽  
Positive Influence ◽  
Survey Method ◽  
Corporate Leadership ◽  
Work Effectiveness

ABSTRACT   This study aims to reveal the influence of the Commitment of Corporate Leadership (X1) and organizational culture (X2) to the effectiveness of employee work (Y). The research method used was a survey method. The sampling technique uses stratified random sampling. The research sample amounted to 48 respondents. The trial results of the research instruments show that the reliability of the Likert scale instrument of organizational culture is 0.917, work motivation is 0.792, and work effectiveness is 0.854. Analysis of the data used is regression analysis. The conclusion of the research results revealed: (1) There is an influence of the Commitment of the Leadership of the Company to the effectiveness of the work of employees. From the analysis results obtained a regression coefficient of 3,336 means that the influence of the Commitment of the Leadership of the Company amounted to 33.36%. (2) There is a positive influence of organizational culture on work effectiveness. From the analysis results obtained a correlation coefficient of 3742 means that there is a positive influence of organizational culture on work effectiveness by 37.42%. (3) There is a positive influence of the Commitment of the Company's Leadership Tasks and organizational culture together on work effectiveness. From the results of the analysis obtained a regression value of 14.58 means that there is a positive influence on the Commitment of the Leadership of the Company and organizational culture together on work effectiveness is 14.58%. Keywords: leadership commitment, organizational culture, work effectiveness, employees

scholarly journals Pengaruh penggunaan aplikasi Plantnet dan gaya belajar terhadap hasil belajar

2020 ◽  
Vol 7 (1) ◽  
pp. 12-22
Author(s):  
Anton Adhy Pujianto ◽  
I Nyoman Sudana Degeng ◽  
Sugito Sugito
Keyword(s):  
Learning Styles ◽  
Learning Outcomes ◽  
Random Sampling ◽  
Research Method ◽  
Science Learning ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Class Discussion ◽  
Science Students ◽  
Analysis Technique

Tujuan dari penelitian ini adalah: 1.) Untuk mengetahui pengaruh penggunaan aplikasi PlantNet terhadap hasil belajar; 2.) Untuk mengetahui pengaruh gaya belajar terhadap hasil belajar; dan 3.) Untuk mengetahui interaksi antara peng-gunaan aplikasi PlantNet dan gaya belajar terhadap hasil belajar IPA siswa kelas VII. Metode penelitian ini menggunakan penelitian eksperimen. Penelitian dilak-sanakan pada tanggal 20 Januari 2020 sampai dengan 14 Maret 2020. Populasi dalam penelitian ini sebanyak 32 kelas dengan jumlah sebanyak 1.088 siswa kelas VII ditiga sekolah yaitu SMP Negeri 2 Gedangan, SMP Negeri 3 Sidoarjo, dan SMP Negeri 4 Sidoarjo. Teknik pengambilan sampel penelitian menggunakan simple random sampling, pengambilan sampel secara acak sederhana melalui nomor undian. Dalam pengambilan sampel didapat 3 kelas eksperimen penggunaan aplikasi PlantNet dan 3 kelas kontrol tanpa aplikasi PlantNet menggunakan diskusi kelas. Teknik analisis data menggunakan Anava dua jalur dengan nilai signifikansi sebesar α = 0,05. Hasil penelitian ini menunjukkan bahwa: 1.) Ada-nya  pengaruh penggunaan aplikasi PlantNet terhadap hasil belajar IPA siswa kelas 7; 2.) Adanya pengaruh gaya belajar terhadap hasil belajar IPA siswa kelas 7; dan 3.) Adanya interaksi antara penggunaan aplikasi PlantNet dan gaya belajar terhadap hasil belajar IPA siswa kelas VII. AbstractThe objectives of this study are: 1.) To determine the effect of using the PlantNet application on learning outcomes; 2.) To determine the effect of learning styles on learning outcomes; and 3.) To determine the interaction between the use of the PlantNet application and learning styles on the learning outcomes of 7th grade science students. This research method uses experimental research. The study was conducted on January 20 until March 14, 2020. The population in this study was 32 classes with a total of 1,088 7th grade students in three schools, namely SMP Negeri 2 Gedangan, SMP Negeri 3 Sidoarjo, and SMP Negeri 4 Sidoarjo. The research sampling technique uses simple random sampling, simple random sampling through lottery numbers. In sampling obtained 3 experimental classes using the PlantNet application and 3 control classes without the PlantNet application using class discussion. Data analysis technique used two-way Anava with a significance value of α = 0.05. The results of this study indicate that: 1.) The influence of the use of the PlantNet application on the learning outcomes of the 7th grade science students; 2.) The influence of learning styles on the results of science learning for 7th grade students; and 3.) There is an interaction between the use of the PlantNet application and learning styles on the learning outcomes of 7th grade science students. 

scholarly journals PENGARUH LITERASI EKONOMI TERHADAP PERILAKU KONSUMTIF MAHASISWA STKIP PERSADA KHATULISTIWA SINTANG

2019 ◽  
Vol 4 (1) ◽  
pp. 35-46
Author(s):  
Anna Marganingsih ◽  
Emilia Dewiwati Pelipa
Keyword(s):  
Data Collection ◽  
Random Sampling ◽  
Null Hypothesis ◽  
Research Method ◽  
Alternative Hypothesis ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Economic Literacy ◽  
Data Collection Tool ◽  
Consumptive Behavior

Abstract: This research is motivated by the fact that not all consumers behave rationally. There are still many consumers who behave iirationally in the form of consumptive behavior. Consumers in this case students who have consumptive behavior are suspected because consumers are lacking in economic literacy. The purpose of this study was to determine the effect of economic literacy on student consumptive behavior at STKIP Persada Kahtulistiwa Sintang. The research method used is quantitative with factual exposures. The population is students with 257 people. The sampling technique used is Simple Random Sampling with a sample size of 65 people. Data collection tool in the form of questionnaires and test questions. The results showed that economic literacy had a negative and significant effect on students' consumptive behavior in STKIP Persada Khatulistiwa Sintang. This is confirmed by the results of the t test which shows the value of t count - 3,400> t table - 1,998 (Two Tailed) on df = n -2 = 65 - 2 = 63 and the error rate (α = 5%) or significance 0,000 <0.05 means null hypothesis is rejected and alternative hypothesis is accepted. Keywords: Economic Literacy, Consumptive Behavior Abstrak: Penelitian ini dilatarbelakangi oleh kenyataan yang terjadi bahwa tidak semua konsumen berperilaku rasional. Masih banyak konsumen yang berperilaku iirasional dalam bentuk perilaku konsumtif. Konsumen dalam hal ini mahasiswa yang memiliki perilaku konsumtif diduga karena konsumen kurang dalam literasi ekonomi. Tujuan dalam penelitian ini adalah untuk mengetahui pengaruh literasi ekonomi terhadap perilaku konsumtif mahasiswa di STKIP Persada Kahtulistiwa Sintang. Metode penelitian yang digunakan adalah kuantitatif dengan bentuk ekspos fakto. Populasi adalah mahasiswa  dengan jumlah 257 orang. Teknik sampling yang digunakan adalah Simple Random Sampling dengan jumlah sample 65orang. Alat pengumpul data berupa angket dan soal tes. Hasil penelitian menunjukkan bahwa literasi ekonomi berpengaruh negatif dan signifikan terhadap perlaku konsumtif mahasiswa di STKIP Persada Khatulistiwa Sintang. Hal ini dipertegas dengan hasil uji t yang menunjukkan nilai t hitung – 3,400 > t tabel - 1,998 (Two Tailed) pada dk = n -2 = 65 – 2 = 63 dan tingkat kesalahan (α = 5%) atau signifikansi 0.000 < 0.05 artinya Ho ditolak dan Ha diterima. Kata Kunci : Literasi Ekonomi, Perilaku Konsumtif

scholarly journals Perbandingan Efektifitas Proses Pembelajaran Menggunakan Metode E-Learning dan Konvensional

2019 ◽  
Vol 2 (1) ◽  
pp. 35 ◽  
Author(s):  
Cindy Cahyaning Astuti ◽  
Herlinda Maya Kumala Sari ◽  
Nuril Lutvi Azizah
Keyword(s):  
Conventional Method ◽  
Random Sampling ◽  
Research Method ◽  
Sampling Technique ◽  
Ideal Solution ◽  
Learning Methods ◽  
Face To Face ◽  
E Learning ◽  
Lecture Time ◽  
Cluster Random Sampling

This study focuses on the comparison between e-learning methods and conventional method (face-to-face) to find out the weaknesses and strengths of e-learning applied at Muhammadiyah University in Sidoarjo. E-Learning used in this study is Edmodo. The research method in this study used Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The sampling technique used is cluster random sampling which is taken proportionally for each cluster. Based on the results of the study it was found that the conventional method (face to face) is still considered better by students than e-learning because it is easier to understand the material and easier to interact with the teacher. However, e-learning itself also has advantages compared to conventional, namely in terms of flexibility in lecture time and ease of collecting assignments

scholarly journals Faktor Yang Berperan Terhadap Daya Tarik Wisatawan Berkunjung Ke Obyek Wisata Pantai Goa Cemara Sanden

2019 ◽  
Vol 10 (2) ◽  
Author(s):  
M. Agus Prayudi
Keyword(s):  
Data Analysis ◽  
Foreign Exchange ◽  
Random Sampling ◽  
Research Method ◽  
Sampling Technique ◽  
Tourist Attraction ◽  
Positive Role ◽  
Natural Factors ◽  
Tourism Sector ◽  
Beach Tourism

Abstract - The tourism sector is the mainstay of the country's foreign exchange income. Thus an increase in attractions that can be visited by tourists is very necessary and sought. One effort is to conduct research that aims to determine natural factors, infrastructure factors, and Sapta Enchantment Tourism factors can play a positive role in the interest of tourist attraction to visit beach attractions, one of which is Goa Cemara beach tourism object in Sanden. The research method used was a quota incidental sampling random sampling technique from tourists visiting Goa Cemara beach attractions. The number of samples is 105 people. The method of data collection uses guided interview techniques, which uses interview guidelines compiled by researchers and tested to determine the reliability of the instrument. The method of data analysis uses percentage techniques. The conclusions of the study are as follows; (1) natural factors play a good role in increasing the interest or attractiveness of tourists to visit Goa Cemara beach tourism objects (77.4%), (2) infrastructure factors play a moderate role in increasing the interest or attraction to visit Goa Cemara beach attractions ( 51.6%), and (3) Sapta Pesona Wisata factor plays a good role in increasing the interest or attractiveness of tourists visiting Goa Cemara beach attractions (74.8%). It is suggested that there should be an effort to always improve and develop natural factors, infrastructure, and Sapta Tourism charm in order to increase the number of tourist visits in Goa Cemara beach attractions in order to increase the country's foreign exchange and the welfare of the community around the tourist attraction. Keywords: Natural attractions, infrastructure, Sapta Pesona Wisata and tourism objects. Abstrak - Sektor pariwisata merupakan sektor andalan pemasukan devisa negara. Dengan demikian peningkatan obyek wisata supaya dapat dikunjungi wisatawan sangat diperlukan dan diupayakan. Salah satu upaya adalah mengadakan penelitian yang bertujuan untuk menentukan faktor alam, faktor infrastruktur, dan faktor Sapta Pesona Wisata dapat berperan positif terhadap minat akan daya tarik wisatawan berkunjung ke obyek wisata pantai, salah satunya obyek wisata pantai Goa Cemara di Sanden. Metode Penelitian yang digunakan adalah teknik penentuan sampel secara quota insidental random sampling dari para wisatawan yang berkunjung ke obyek wisata pantai Goa Cemara. Jumlah sampel sebanyak 105 orang. Metode pengumpulan data menggunakan teknik wawancara terpimpin, yakni menggunakan pedoman wawancara yang disusun peneliti dan diujicobakan untuk menentukan reliabilitas instrumen. Metode analisis data menggunakan teknik prosentase. Kesimpulan penelitian adalah sebagai berikut ; (1) faktor alam berperan bagus dalam meningkatkan minat atau daya tarik wisatawan untuk berkunjung ke obyek wisata pantai Goa Cemara (77,4%), (2) faktor infrastruktur berperan sedang terhadap peningkatan minat atau daya tarik berkunjung ke obyek wisata pantai Goa Cemara (51,6%), dan (3) faktor Sapta Pesona Wisata berperan bagus dalam meningkatkan minat atau daya tarik wisatawan berkunjung ke obyek wisata pantai Goa Cemara (74,8%). Disarankan perlu ada upaya selalu meningkatkan dan mengembangkan faktor-faktor alam, infrastruktur, dan Sapta pesona Wisata guna meningkatkan jumlah kunjungan wisata di obyek wisata pantai Goa Cemara demi peningkatan devisa negara dan kesejahteraan masyarakat sekitar obyek wisata. Kata kunci: Daya tarik alam, infrastruktur, Sapta Pesona Wisata dan obyek wisata.

scholarly journals Pengaruh Pelaksanaan Pengalaman Lapangan Industri terhadap Minat Berwirausaha pada Mahasiswa Teknik Otomotif Fakultas Teknik Universitas Negeri Padang

2021 ◽  
Vol 2 (1) ◽  
pp. 21-32
Author(s):  
Gusmardiansah Gusmardiansah ◽  
Rifdarmon Rifdarmon
Keyword(s):  
Significant Influence ◽  
Random Sampling ◽  
Research Method ◽  
Field Experience ◽  
Total Population ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
State University ◽  
Descriptive Research ◽  
Engineering State

Indonesia is currently experiencing many problems, the trigger is the COVID-19 outbreak so that many workers have been laid off and cause poverty. The effort made to solve this is to increase student resources who are interested in entrepreneurship. In the Faculty of Engineering, State University of Padang, there are lessons that support interest in entrepreneurship, namely the Industrial Field Experience Course (PLI). This research will look for the influence of PLI on Entrepreneurial Interest, this is done to see the entrepreneurial values that grow after the implementation of PLI. Correlational descriptive research method with a population of 83 people from the total population taken 33 people for testing, while the 50 people for research, sampling technique (simple random sampling). The results showed that there was a significant influence between variables, 84% of PLI Implementation, 77% Entrepreneurial Interest and the Influence of PLI on Entrepreneurial Interest 28.4%. Indonesia saat ini mengalami banyak permasalahan, pemicunya adalah Wabah COVID-19 sehingga banyak tenaga kerja yang di PHK dan menyebabkan kemiskinan. Usaha yang dilakukan untuk menyelesaikan ini yaitu meningkatkan Sumber Daya Mahasiswa yang berminat untuk Berwirausaha. Di fakultas Teknik Universitas Negeri Padang ada Pembelajaran yang menunjang minat berwirausaha yaitu Mata Kuliah Pengalaman Lapangan Industri (PLI). Pada penelitian ini akan di cari Pengaruh PLI terhadap Minat Berwirausah, ini dilakukan untuk melihat nilai-nilai wirausaha yang tumbuh setelah pelaksanaan PLI. Metode penelitian deskriptif korelasional dengan Populasi sebanyak 83 orang dari jumlah populasi di ambil 33 orang untuk ujicoba, sedangkan yang 50 orang untuk Penelitian, Teknik sampling (simple random sampling). Hasil penelitian adanya pengaruh siknifikan antar variabel, 84% Pelaksanaan PLI, Minat Berwirausaha 77% dan Pengaruh PLI terhadap Minat Berwirausaha 28,4%.

scholarly journals PENGARUH KEMAMPUAN BERHITUNG DAN MENYEDERHANAKAN BENTUK ALJABAR TERHADAP KEMAMPUAN MENYELESAIKAN MASALAH TRIGONOMETRI

2019 ◽  
Vol 17 (2) ◽  
pp. 121
Author(s):  
Yadi Ardiawan
Keyword(s):  
Random Sampling ◽  
Research Method ◽  
Sampling Technique ◽  
Positive Influence ◽  
Measuring Instrument ◽  
Analysis Techniques ◽  
Research Population ◽  
Relationship Study ◽  
Academic Year ◽  
Cluster Random Sampling

<p align="center"><strong>Abstrak</strong></p><p>Penelitian bertujuan untuk mengukur pengaruh kemampuan berhitung dan kemampuan menyederhanakan bentuk aljabar terhadap kemampuan menyelesaikan masalah Trigonometri. Metode penelitian adalah deskriptif dengan bentuk penelitian studi hubungan. Populasi penelitian seluruh mahasiswa Pendidikan Matematika IKIP PGRI Pontianak yang mengambil mata kuliah Trigonometri tahun akademik 2017/2018 sebanyak 100 orang yang terbagi menjadi 3 kelas yaitu kelas AP, BP, dan CP. Sampel adalah mahasiswa kelas AP dengan teknik <em>cluster random sampling</em>. Alat ukur yang digunakan adalah tes kemampuan menghitung, menyederhanakan bentuk aljabar, dan menyelesaikan masalah Trigonometri dalam bentuk esai yang terdiri dari 5 butir soal untuk masing-masing tes. Teknik analisis data menggunakan uji parametrik. Hasil penelitian adalah: (1) Terdapat pengaruh yang positif antara kemampuan berhitung terhadap kemampuan menyelesaikan masalah Trigonometri sebesar 23,4%; (2) Terdapat pengaruh yang positif antara kemampuan menyederhanakan bentuk aljabar terhadap kemampuan menyelesaikan masalah Trigonometri sebesar 19,9%; dan (3) Terdapat pengaruh yang positif secara bersama-sama antara kemampuan berhitung dan kemampuan menyederhanakan bentuk aljabar terhadap kemampuan menyelesaikan masalah Trigonometri sebesar 29%.</p><p> </p><p align="center"><strong><em>Abstract</em></strong></p><p><em>The research aims to measure the effect of the ability to count and to simplify the form of algebra on the ability to solve Trigonometric problems. The research method was descriptive with a form of relationship study research. The research population was all students of Mathematics Education of IKIP PGRI Pontianak taking Trigonometry courses in the academic year 2017/2018 were 100 people divided into 3 classes, namely AP, BP, and CP classes. Samples are AP class students with a cluster random sampling technique. The measuring instrument used the ability to calculate tests, simplify the form of algebra, and solve Trigonometry problems in the form of essays consisting of 5 items for each test. Data analysis techniques used parametric. The results of the research: (1) There is a positive influence between the ability to count on the ability to solve Trigonometry problems by 23.4%; (2) There is a positive influence between the ability to simplify the form of algebra to the ability to solve Trigonometry problems by 19.9%; and (3) There is a positive influence jointly between the ability to count and the ability to simplify the form of algebra on the ability to solve trigonometric problems by 29%.</em></p><p> </p><p> </p>

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