Validation of Small-Scale Chemistry Experiments Developed Using Low-Cost Materials

2014 ◽  
Vol 9 (1) ◽  
Author(s):  
GEORGINA A. DIOPENES
Keyword(s):  
Conceptual Understanding ◽  
Concept Maps ◽  
Strong Association ◽  
Small Scale ◽  
Control Group ◽  
Control Groups ◽  
Control Group Design ◽  
Group Design ◽  
And Control ◽  
Experimental Group

Traditional laboratory chemistry experiments are often constrained by cost.Alternatively, the researcher developed a General Chemistry Laboratory Moduleof Small-Scale Experiments that can be performed individually by tertiaryfreshmen at lesser expense. It includes five experiments aligned with the Trendsin International Mathematics and Science Study TIMSS’ topics in Chemistry;hence, also offers public secondary schools the prospect of extensive chemistrylaboratory capability that can upgrade their performance in the TIMSS’assessment in science. A non-equivalent pretest-posttest control group design wasused to investigate the effects of small-scale and traditional chemistry experimentson achievement, conceptual understanding and level of participation of theexperimental and control groups respectively. Validated and reliability-testedmultiple-choice tests measured achievement while concept maps with very stronginter-rater reliability assessed conceptual understanding. The experimental group showed greater percent gain in achievement and conceptual understanding, and a strong association between the variables. The independent t-test found nosignificant difference between experimental and control groups in achievementand conceptual understanding but the level of participation scored through aresearcher-made rubric gave a higher average for the experimental group. Onthe basis of achievement, conceptual understanding, and level of participation, small-scale chemistry experiments were found to be appropriate substitutes fortraditional laboratory experiments - pedagogically effective with added values ofbeing environment-friendly and cheap.Keywords: Chemical education, small-scale achievement, conceptual understanding,level of participation, non-equivalent pretest-posttest control group design,Philippines

scholarly journals Efektivitas Biblioterapi Kelompok untuk Menurunkan Agresivitas Siswa Sekolah Dasar

2020 ◽  
Vol 12 (1) ◽  
pp. 93-102
Author(s):  
Fikri Tahta Nurul Fiqih ◽  
Annita Wahyuningtyas ◽  
Abid Abdi Aziz ◽  
Erni Agustina Setiyowati
Keyword(s):  
Control Group ◽  
Control Groups ◽  
Control Group Design ◽  
Group Design ◽  
Feasibility Assessment ◽  
Significant Difference ◽  
Before And After ◽  
Post Test ◽  
And Control ◽  
Experimental Group

Penelitian ini bertujuan untuk mengetahui efektivitas biblioterapi kelompok dalam menurunkan agresivitas pada siswa sekolah dasar. Penelitian ini menggunakan metode eksperimen dengan desain Pretest-Postest Control Group Desain. Sampel dipilih berdasarkan hasil seleksi menggunakan skala agresivitas. Penempatan kelompok eksperimen menggunakan randomisasi. Sebanyak 18 siswa sebagai kelompok eksperimen dan 18 siswa sebagai kelompok kontrol. Alat ukur yang digunakan untuk pretest dan post test adalah skala agresivitas yang terdiri dari 55 pernyataan. Biblioterapi dilaksanakan sebanyak 7 sesi dengan menggunakan naskah-naskah cerita yang telah mendapat penilaian kelayakan dari Psikolog. Hasil analisis data menggunakan uji F menghasilkan perbedaan agresivitas yang signifikan antara gainscore kelompok eksperimen dan kontrol. Selain itu terdapat perbedaan agresivitas yang signifikan pada kelompok eksperimen sebelum dan sesudah intervensi, sedangkan pada kelompok control tidak ada perbedaan agresivitas yang signifikan antara pretest dan post test. Dapat disimpulkan bahwa biblioterapi kelompok dapat menurunkan agresivitas siswa.  This study aims to determine the effectiveness of bibliotherapy in reducing aggressiveness in elementary students. This study used an experimental method with the pretest-posttest control group design. The sample is chosen based on the results of the selection using an aggressiveness scale. Placement of the experimental group using randomization. A total of 18 students as the experimental group and 18 students as a control group. The measuring instrument used for the pretest and post-test is an aggressiveness scale consisting of 55 statements. Bibliotherapy was carried out as many as seven sessions using story scripts that had received a feasibility assessment from a Psychologist. The results of data analysis using the F test produced a significant difference in aggressiveness between the gain score of the experimental and control groups. The results showed that there were substantial differences in aggressiveness in the experimental group before and after the intervention. Whereas, in the control group, there was no significant difference in aggressiveness between the pretest and post-test. It can be concluded that bibliotherapy effectively reduces student aggressiveness.

scholarly journals Pengaruh Terapi AIUEO terhadap Kemampuan Bicara Pasien Stroke yang Mengalami Afasia Motorik

2019 ◽  
Vol 1 (2) ◽  
pp. 226-235
Author(s):  
Afnijar Wahyu ◽  
Liza Wati ◽  
Murad Fajri
Keyword(s):  
Wilcoxon Test ◽  
Control Group ◽  
Stroke Patients ◽  
Control Groups ◽  
Control Group Design ◽  
Treatment Groups ◽  
Group Design ◽  
Motor Aphasia ◽  
A Value ◽  
And Control

The purpose of this study was to determine the effect of AIUEO therapy on the speech ability of stroke patients who have motor aphasia in Raja Ahmad Thabib Hospital Tanjungpinang. The research design used was quasi experiment with the Nonequivalent Control Group Design approach to 9 respondents who were divided into 9 treatment groups and 9 control groups. The results showed that there were significant differences in the functional ability of communication between the control and treatment groups with a value of p <0.05 (p = 0.007 at a = 0.05) using the Wilcoxon Test statistical test. Conclusion, the influence of AIUEO therapy on the speech ability of stroke patients with motor aphasia in the treatment and control groups at Ahmad Thabib Hospital Tanjungpinang.   Keywords: Speech Ability, Motor Aphasia Stroke, AIUEO Therapy

scholarly journals PENERAPAN PEMBELAJARAN INVESTIGASI KELOMPOK UNTUK MENINGKATKAN KETERAMPILAN PROSES SAINS DITINJAU DARI INTELLIGENCE QUOTIENT SISWA

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Raudatus Solihah ◽  
Agus Abhi Purwoko ◽  
Erin Ryantin Gunawan
Keyword(s):  
Intelligence Quotient ◽  
Average Score ◽  
Control Group ◽  
Control Group Design ◽  
Process Skill ◽  
Group Design ◽  
Science Process Skill ◽  
Quasi Experimental ◽  
And Control ◽  
Experimental Group

This research aims to know the effect of group investigation learning on student’s science process skill based on their IQ in SMAN 1 Mataram for eleventh grade students. This is a quasi experimental study using pretest postest control group design design. Pretest was taken to get data of student’s IQ. Posttest was also conducted to measure student’s science process skill. Sample was taken using nonprobability sampling from the population of eleventh grade student in SMAN 1 Mataram.The sample was two group of student each from two class, class XI sains 6 and as experimental group and class XI sains 5 as control group. The average os Student’s IQ on experimental group and control group were equal, both at 112. Learning processes were 12 x 45 minutes long in total. The experimental group showed better average score on posttest where they scored 82.40 on average, while control group only scored 74.83 on average. This value is statistically significant, at p = 0.007, less that 0.005. This result shows that implementation of group investigation can increase student’s science process skill.Keywords: Group investigation, science process skill, intelligence Quotient (IQ)ABSTRACT

scholarly journals USING SOCIOGRAM TO IMPROVE THE WRITING AND SPEAKING ACHIEVEMENTS OF THE EIGHT GRADE STUDENTS OF SMPN 1 JARAI

2019 ◽  
Vol 2 (2) ◽  
pp. 269
Author(s):  
Yoga Pratama
Keyword(s):  
Eighth Grade ◽  
Control Group ◽  
Control Groups ◽  
Control Group Design ◽  
Significant Difference ◽  
Eighth Grade Students ◽  
Post Test ◽  
And Control ◽  
Experimental Group ◽  
Test Control

The objectives of this study were to find out whether or not there was significant improvement in writing and speaking achievements of the eighth grade students of SMPN1 Jarai after they were taught by using Sociogram, to find out whether or not there was significant improvement in each aspect of writing and speaking achievements of the eighth grade students of SMPN1 Jarai after they were taught by using Sociogram, to find out whether or not there was significant difference in writing and speaking achievements between the eighth grade students of SMP 1 Jarai who were taught by using Sociogram and those who were not, and to find out the perception of the eighth grade students of SMPN 1 Jarai after they were taught by using Socoiogram. In this paper, an experimental research method with pre and post test control group design was used with 70 students as the sample divided into two groups, experimental and control group. However, only the students of the experimental group were taught by using Sociogram. The obtained data were analyzed by using t-test. The students were given questionnaire to know their perceptions. The result showed that there was a significant difference in both students? writing and speaking achievements after they were tought by using Sociogram. Furthermore, it was found that there was a significant difference in students? writing and speaking achievement between the experimental and control groups. In conclusion, Sociogram improves the students? writing and speaking achievements.

scholarly journals Management of the Libidinal Impulses in Adolescents to Improve their Quality of Life

2015 ◽  
Vol 5 ◽  
pp. 46-54
Author(s):  
PARUL AGRAWAL ◽  
PRANAV PANDYA
Keyword(s):  
Quality Of Life ◽  
Public School ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Mother Teresa ◽  
And Control ◽  
Experimental Group ◽  
General Wellbeing

Aim of the present study was to examine the effect of yogic practices in managing libidinal impulses among adolescents and improving their quality of life. Experimental and control group design was used. Eighty samples were collected through accidental sampling (40 in experimental group and 40 in control group) from Mother Teresa Public School, Delhi. The students those who had high levels of libidinal impulses were selected. The age of the subjects ranged from 14-19 years. The students in the experimental group were made to do yogic practices regularly for 40 days. Libidinal Impulses Scale and PGI General Wellbeing Scale were used. The obtained values of t-test for Libidinal Impulses and General Wellbeing are significant at 0.01 level of confidence. The  result  of  the  study  shows  that  yogic practices  are  significantly  effective  in  reducing  the  levels  of  libidinal impulses  and  improve the level of quality of life of adolescents.

scholarly journals Perbedaan Pemahaman Siswa Tentang Sopan Santun Ditinjau Dari Pemberian Layanan Bimbingan Kelompok Berlandaskan Falsafah Dandang Tingang Kelas VII SMP Muhammadiyah Palangkaraya

2018 ◽  
Vol 4 (1) ◽  
pp. 17-23
Author(s):  
Dewi Rabiola ◽  
Muhammad Andi Setiawan
Keyword(s):  
Control Group ◽  
Research Approach ◽  
Control Groups ◽  
Control Group Design ◽  
Guidance Services ◽  
Post Test ◽  
Sample Test ◽  
And Control ◽  
Experimental Group ◽  
Group Guidance

This study aims to determine whether there is a difference in understanding of Student Polite regarding the provision of Group Guidance Services based on the Dandang Tingang Philosophy. This study used the Pure Experimental Research approach. The design used is the pretest-posttest control group design. Based on the results of research conducted at Palangka Raya Muhammadiyah Middle School with the results of the calculation of paired sample test with t count on the results of the Pre-test the value of t = 1,088 = and t table 2,10 which shows no difference between the control group and the experimental and postal results -test value t = 5.696 = and t table 2.10 price t count = t table so that Ho is rejected, and Ha is accepted it can be said if the experimental group gets better results compared to the control group. In the results of the Pre-test which showed no difference between the experimental and control groups and after being given treatment through group guidance services in the experimental group, the results of the post-test showed there were differences between the control and experimental groups. It can be concluded if the implementation of group guidance services in the experimental class is effective in increasing the understanding of students manners.

scholarly journals USING CHESSBOARD TECHNIQUE IN RESPONDING TO THE SHORT STORY TO DEVELOP STUDENTS’ SPEAKING SKILL

2018 ◽  
Vol 1 (2) ◽  
pp. 11-19
Author(s):  
Putu Karolina
Keyword(s):  
Short Story ◽  
T Test ◽  
Control Group ◽  
Control Group Design ◽  
Paired Sample ◽  
Group Design ◽  
Quasi Experimental ◽  
Speaking Skill ◽  
And Control ◽  
Experimental Group

This study aimed to answer whether using chessboard technique in responding to short story develops student’s speaking skill or not. The method used in this study was one of the quasi-experimental designs: pretest-posttest non-equivalent comparison control group design. The population of the study was the eleventh-grade student at SMA N 12Palembang and the sample were taken from the population by using purposive sampling. The data were collected by using two instruments, test and questionnaire. The test wasgiven twice to the experimental and control group, as the pretest and the posttest. Thequestionnaire was distributed to the experimental group after conducting the treatment to get more information related to the problem of the study. To verify the hypothesis, thedata from pretest and posttest on the experimental and control group were analyzed byusing paired sample t-test and independent sample t-test. The result of the study showed that applying chessboard technique in responding to the short story develops student’s speaking skills. Some students (60%) in the experimental group achieve good category compared to only a few students (20%) in control group. 

scholarly journals PENGARUH PELATIHAN LANGKAH BAYANGAN (SHADOW) MEMINDAHKAN BOLA BULUTANGKIS TERHADAP KELINCAHAN DAN DAYA LEDAK OTOT TUNGKAI

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
Gde Ryan Saputra ◽  
Made Budiawan Budiawan ◽  
Gede Doddy Tisna
Keyword(s):  
Muscle Power ◽  
Vertical Jump ◽  
Control Group ◽  
Control Groups ◽  
Control Group Design ◽  
Group Design ◽  
The Mean ◽  
Leg Muscle ◽  
And Control ◽  
Leg Muscle Power

Penelitian ini bertujuan untuk mengetahui pengaruh pelatihan langkah bayangan (shadow) memindahkan bola bulutangkis terhadap kelincahan dan daya ledak otot tungkai. Jenis penelitian adalah eksperimen semu dengan rancangan the non randomized pretest-posttest control group design. Subjek penelitian sebanyak 20 orang. Kelincahan diukur dengan tes zig-zag run, dan untuk daya ledak otot tungkai menggunakan tes vertical jump, selanjutnya data dianalisis dengan bantuan komputer program SPSS 16.0. Hasil analisis data kelincahan pada kelompok perlakuan langkah bayangan terjadi peningkatan rata-rata gaint score sebesar 0,49 dan pada kelompok kontrol terjadi peningkatan rata-rata gaint score sebesar 0,25. Hasil analisis data daya ledak otot tungkai pada kelompok perlakuan langkah bayangan terjadi peningkatan rata-rata gaint score sebesar 9,1 dan pada kelompok kontrol terjadi peningkatan rata-rata gaint score sebesar 5,0. Hasil uji t-independent variabel kelincahan antara kelompok perlakuan dan kelompok kontrol didapat Thitung sebesar 5,082 dengan signifikansi 0,000 dan untuk variabel daya ledak otot tungkai antara kelompok perlakuan dan kelompok kontrol didapat Thitung sebesar 6,403 dengan signifikansi 0,000. Dari hasil analisis data dan pembahasan dapat disimpulkan bahwa; (1) pelatihan langkah bayangan (shadow) memindahkan bola bulutangkis berpengaruh terhadap peningkatan kelincahan pada siswa putra ekstrakurikuler bulutangkis SMP Negeri 1 Ubud. (2) pelatihan langkah bayangan (shadow) memindahkan bola bulutangkis berpengaruh terhadap peningkatan daya ledak otot tungkai pada siswa putra ekstrakurikuler bulutangkis SMP Negeri 1 Ubud.Kata Kunci : Langkah Bayangan (shadow), kelincahan, daya ledak otot tungkai The aims of this study was to determined the effect of training shadow step moving a shuttlecock to the agility and leg muscle power. Type of research was quasi experiment with the non randomized pre-test-post-test control group design. This research as many as 20 subjacts. Agility measured with a zig-zag run test and Leg muscle power measured with a vertical jump tests, then the data were analyzed with the aid of a computer program SPSS 16.0. The results of the analysis of agility on a shadow step treatment group, the mean of gaint score increased of 0,49, in the control group there was an increase of 0,25. The result of the analysis of leg muscle power on a shadow step treatment group, the mean of gaint score increased of 9,1, in the control group there was an increase of 5,0. The results of t-Independent agility variables between the treatment and control groups obtained Taccount of 5,082 with significance 0,000, leg muscle power variables between the treatment and control groups obtained Taccount of 6,403 with significance 0,000. From the results of the data analysis and discussion, it can be concluded that; (1) shadow step training effect on the increase in agility men's badminton extracurricular of SMPN 1 Ubud. (2) shadow step training effect on the increase in leg muscle power men's badminton extracurricular of SMPN 1 Ubud.keyword : shadow step, agility, leg muscle power

scholarly journals Membaca Al Fatihah Reflektif Intuitif untuk Menurunkan Depresi dan Meningkatkan Imunitas

2015 ◽  
Vol 42 (1) ◽  
pp. 34
Author(s):  
Very Julianto ◽  
Subandi
Keyword(s):  
Boarding School ◽  
Control Group ◽  
Mixed Design ◽  
Depression Anxiety Stress Scale ◽  
Control Group Design ◽  
Group Design ◽  
Stress Scale ◽  
And Control ◽  
Experimental Group ◽  
Microscopic Slide

This study aimed to reduce depression and increase immunity through training of reading of the reflective intuitive Al-Fatihah. Researchers used an experimental method with pretest-posttest control group design. Each experimental group and control group consisted of 10 students of Islamic Boarding School. To measure stress degree, Depression Anxiety Stress Scale (DASS) was used. Immunity was measured with microscopic slide method using hematology analyzer. Quantitative analysis was done through a mixed design anova statistical test. The results showed that the training could reduce depression (F=15.34, p

scholarly journals Efficacy of Meditative Prayer on Guilt Feelings, Inferiority & Insecurity

2019 ◽  
Vol 3 ◽  
pp. 37-41
Author(s):  
MANJU DEORARI ◽  
MRIGNAYANI AGRAWAL ◽  
PRATIMA SHUKLA
Keyword(s):  
Control Group ◽  
Guilt Feeling ◽  
Control Group Design ◽  
Group Design ◽  
Level Of Confidence ◽  
College Going ◽  
And Control ◽  
Experimental Group

Aim of the present study was to  examine  the  efficacy  of  Meditative-Prayer  on  the  feelings  of   Guilt,  Inferiority  and  Insecurity  among  college  going  students. Experimental and control group design was used. Sixty sample were collected through accidental sampling (30 in control group and 30 in experimental group) from M.B.P.G  College, Haldwani (Nainital). The students who had high levels of guilt, inferiority and insecurity feelings were selected. The age of the subjects ranged from 18-26 years. The students in the experimental group were made to do Meditative Prayer regularly for 30 days. Bhramavarchas Guilt Feeling Test and the   Inferiority-Insecurity Scale were used. The  obtained value  of  x2  for  Guilt  and  Inferiority  feelings  is  significant  at  0.01  level and Insecurity feeling is significant at  0.05  level of confidence. The  result  of  the  study  shows  that  Meditative Prayer  is  significantly  effective  in  reducing  the  levels  of  Guilt,  Inferiority  and  Insecurity  Feelings.

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