Comment on “Three Aspects of Cognitive Development”

1978 ◽  
Vol 46 (1) ◽  
pp. 129-130 ◽  
Author(s):  
William Asher
Keyword(s):  
Cognitive Development ◽  
Experimental Design ◽  
Age Groups ◽  
Quasi Experimental ◽  
The Mean ◽  
Regression Toward The Mean ◽  
Two Age Groups

In Exp. 2 of Siegler's 1976 study a faulty quasi-experimental design was used. The stated results, that older and younger children with apparently equal initial performance derived different benefits from identical experience, can also be explained by a confounding with regression toward the mean. These effects are a result of a selective matching of subjects from two age groups on a fallible variable correlated with age.

scholarly journals THE EFFECTIVENESS OF COOPERATIVE LEARNING METHOD TO REDUCING STUDENTS ANXIETY IN LEARNING MATH AT GRADE VII SMP NEGERI 1 BAUBAU

2021 ◽  
Author(s):  
Suwarni La Usa
Keyword(s):  
Experimental Design ◽  
Cooperative Learning ◽  
T Test ◽  
Control Group ◽  
Learning Method ◽  
Round Numbers ◽  
Quasi Experimental ◽  
The Mean ◽  
Experimental Group ◽  
Research Show

The problem of this research is whether the application of cooperative learning method is effective in reducing student’s anxiety in learning Math at grade VII at the topic of round numbers. The objective of the research is to know the effectiveness of cooperative learning in reducing student’s anxiety in learning Math at the topic of round numbers at grade VII SMP Negeri 1 Baubau. This research is descriptive quantitative by applying quasi experimental design. The sample taken consisted of 54 students which is each group consisted of 27 students. The instrument used in this research is test. The result of the research show that (1)The mean score of students learning in Math in experimental group before treatment is 56,48 with standard of deviation is 18,65 and after treatment is 83,70 with standard of deviation is 15,54. (2)The mean score of students learning in Math in control group before treatment is 56,67 with standard of deviation is 17,26 and after treatment is 73,51 with standard of deviation is 17,58. (3)Based on the mean score of students result in learning who is taught through those model of learning and seeing the result of statistic inferential of t test shows that learning through cooperative learning method is more effective to reduce students anxiety in learning Math.

scholarly journals Aplikasi Web Cek Riska sebagai Upaya Meningkatkan Pengetahuan Ibu Mendeteksi Dini Risiko Tinggi Kehamilan

2020 ◽  
Vol 4 (1) ◽  
pp. 215-221
Author(s):  
Ni Luh Putu Martini ◽  
Irna Nursanti ◽  
Giri Widakdo
Keyword(s):  
High Risk ◽  
Experimental Design ◽  
Web Application ◽  
P Value ◽  
Group Design ◽  
Risk Pregnancy ◽  
Before And After ◽  
Quasi Experimental ◽  
The Mean ◽  
In Pregnancy

This study aimed to determine the effect of the risk checks web application on the knowledge of mothers to detect high risk early in pregnancy. The research design used in this study was a quasi-experimental design with one group design without control. The results showed that the mean difference before and after the intervention was 13.00, with a p-value of 0.000. In conclusion, the risk check web application can increase mothers' knowledge to detect high risk early in pregnancy.   Keywords: Web Application, High-Risk Pregnancy

scholarly journals EFEKTIVITAS ANALGESIK DAUN GATAL (Laportea Decumana) PADA PENDERITA MYALGIA DI KAMPUNG ATSJ DISTRIK ATSJ KABUPATEN ASMAT PROVINSI PAPUA

2018 ◽  
Vol 10 (01) ◽  
pp. 50
Author(s):  
Reni Ariastuti ◽  
Kairul Anam ◽  
Idris Yani Pamungkas
Keyword(s):  
Experimental Design ◽  
Dosage Form ◽  
Control Design ◽  
Statistical Test ◽  
Control Group ◽  
Village Community ◽  
Quasi Experimental ◽  
The Mean ◽  
Topical Dosage ◽  
Experimental Group

ABSTRAKDaun gatal (Laportea decumana) merupakan tanaman berkhasiat obat yang tumbuh subur di provinsi Papua. Efektivitas penggunaan L decumana sebagai antinyeri telah diteliti secara pra klinis maupun klinis. Namun demikian, penelitian dengan pemanfaatan langsung dari L decumana sebagai pereda myalgia pada masyarakat di kabupaten Asmat masih jarang dilakukan maka dari itu penelitian ini dilakukan dengan tujuan melihat efektivitas pemanfaatan L decumana terhadap penderita myalgia  di kampung Atsj Distrik Atsj kabupaten Asmat Provinsi Papua. Desain penelitian menggunakan quasi experimental design, dengan rancangan one group pretest-posttest with control design. Sampel sejumlah 40 subjek uji (total sampling) dibagi 2 kelompok : kontrol (tanpa perlakuan) dan perlakuan (daun gatal masing-masing kelompok terdiri dari 20 subjek uji. Analisis efektivitas L decumana sebagai analgesik menggunakan uji statistik Mann-Whitney test dengan tingkat kepercayaan 95%. Derajat myalgia yang dialami oleh masyarakat kampung Atsj tergolong sedang sebanyak 19 orang (47,5%) dan berat sebesar 21 orang (52,5%). Rata-rata derajat myalgia pada kelompok perlakuan sebelum pemanfaatan L. decumana sebesar 5,80 dan setelah perlakuan menurun hingga sebesar 2,70. Daya analgetik dari L. decumana sebesar 53,45 %. Rata-rata derajat myalgia pada kelompok kontrol (tanpa perlakuan) awal 5,65 dan akhir sebesar 5,50. Terdapat pengaruh yang signifikan dalam pemanfaatan L decumana  sebagai analgesik pada penderita myalgia di kampung Atsj, distrik Atsj, kabupaten Asmat, provinsi Papua.Perlu dilakukan pengkajian lebih lanjut terkait kandungan zat aktif dan pembuatan sediaan topikal L decumana sebagai analgesik Kata Kunci: Laportea decumana, Myalgia, kampung AtsjANALGESIC EFFECTIVENESS OF LAPORTEA DECUMANA ON MYALGIA PATIENTS AT ATSJ VILLAGE ASMAT PAPUAABSTRACTBackground Laportea Decumana is a medicinal plant that thrives in Papua. Analgesic  effectiveness of L. Decumana has been studied pre-clinically and clinically yet the research with direct utilization of L. Decumana as myalgia patient in Asmat district is still rarely done. Therefore, this research aimed to see the effectiveness of the utilization of L. Decumana to myalgia patient in ATSJ Village, Asmat, Papua. Method The research design uses quasi experimental design, with one group pretest-posttest control design. The number of participants in this research were all 40 participants consisting of 20 participants for experimental group and 20 participants for control group. The effectiveness of L. Decumana as analgesic was measured by using statistical test Mann-Whitney with level of confidence 95%. Result The degree of myalgia experienced by the ATSJ village community was moderate (19 people) (47.5%) and severe (21 people) (52.5%). The mean degree of myalgia in the treatment group prior to the utilization of L. decumana was 5.80 and after treatment decreased to 2.70. The analgesic power of L. decumana was 53.45%. The pretest mean degree of myalgia in the control group was 5.65 and the posttest was 5.50. Conclusion There is a significant influence in the utilization of L decumana as an analgesic in myalgia patients in ATSJ Village, Asmat, Papua. It is necessary to conduct further study related to active substance content and topical dosage form of L decumana as analgesic.Keywords: Laportea Decumana, Myalgia, ATSJ Village

The Implementation of Directed Reading Thinking Activity (DRTA) to Improve Students’ Reading Comprehension.

SELTICS ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 63-70
Author(s):  
Nurmadina HS ◽  
Yuliah Yuliah
Keyword(s):  
Reading Comprehension ◽  
Cognitive Development ◽  
Experimental Design ◽  
Control Group ◽  
Positive Contribution ◽  
Comprehension Test ◽  
Tenth Grade ◽  
Quasi Experimental ◽  
Research Questions ◽  
Directed Reading

The goal of this research is to look into the use of Directed Reading Thinking Activity to improve students' reading comprehension in the tenth grade at SMAN 1 Tanete Riaja. The following research questions were addressed in this study: 1) How does the implementation of Directed Reading Thinking Activity (henceforth DRTA) improve students' reading comprehension?2) What are the students' perceptions toward the DRTA strategy's implementation? This study employs a quasi-experimental design with both an experimental and a control group. The experimental class was taught using the DRTA strategy, while the control class was taught using the conventional strategy. The participants in this study were chosen at random and were divided into two classes: class X-1, which consisted of 32 students as the experimental class, and class X-2, which consisted of 30 students as the control class. The data was gathered through a reading comprehension test and a questionnaire. According to the findings of this study, using the DRTA method increases students' scores more than using the conventional strategy. The experimental class has a mean score of 76.40, while the control class has a score of 50.3. It indicates that the DRTA strategy significantly improves students' reading comprehension and makes a positive contribution to their cognitive development. Furthermore, the results of the questionnaire show that the majority of students respond positively to the implementation of the DRTA strategy in the classroom.

Changes in Metaphor Comprehension in Children

2009 ◽  
Vol 40 (4) ◽  
pp. 204-212 ◽  
Author(s):  
Ewa Dryll
Keyword(s):  
Experimental Design ◽  
Turning Point ◽  
Age Groups ◽  
Older Children ◽  
Metaphorical Thinking ◽  
Metaphor Comprehension ◽  
Behavioral Traits ◽  
Quasi Experimental ◽  
Physical Features ◽  
Human Attributes

Changes in Metaphor Comprehension in Children The aim of the study was to follow the implicit patterns in children's responses to metaphor describing human by means of a name of animal. The main problem in present study was: which traits of topic (human) would be spontaneously used by children from three age groups? The study followed a quasi-experimental design. The subjects were 77 children from three age groups: 5;6-6;0, 8;0-8;6, 9;6-10;0. The dependent variable: the level of comprehension of 18 metaphors with vehicles from the animal domain and one topic - human. The variable was measured through individual Piagetian interviews. The study confirmed the hypothesis that the ability to activate metaphorical thinking in order to describe human attributes increases with age, with a turning point around 8 year of life. The traits mentioned by subjects could be classified into five categories: unambiguous evaluations, physical features, behavior, behavioral traits, dispositions (intellectual, emotional, communion) and agency. Older children assigned more human dispositional traits, thoughts and preferences to the objects of metaphors. Younger ones often focused on the physical features of animals. With age, the tendency to give positive evaluations to the objects of metaphors increases.

The annual testicular cycle of the brown-headed cowbird (Molothrus ater)

1968 ◽  
Vol 46 (1) ◽  
pp. 77-87 ◽  
Author(s):  
D. M. Scott ◽  
A. L. A. Middleton
Keyword(s):  
Breeding Season ◽  
Molothrus Ater ◽  
Age Groups ◽  
Egg Laying ◽  
Sperm Production ◽  
Behavioral Differences ◽  
Testicular Regression ◽  
Old Adult ◽  
The Mean ◽  
Two Age Groups

An analysis of the spermatogenic condition and of the weights of testes from about 450 brown-headed cowbirds (Molothrus ater) was made to determine the annual cycle of this species at London, Ontario, and to ascertain variation in the cycle due to age. Testes of birds more than 1 year old (adult) reached maximal weights in late April and early May coincident with the beginning of egg-laying, and about 3 weeks before the testes of 1-year-old birds (yearlings) reached their maximal weight. The mean weights of testes of adults were usually greater, often significantly so, than those of yearlings. From about May 23 to June 23 there were no statistically significant differences in the weights of testes from the two age groups. Beginning in late June, the weights of testes declined rapidly in both age groups and reached a minimum in August. Minimal weights of testes persisted in captive birds until February.Large amounts of sperm were present in the testes of adults in mid-April and of yearlings in late April well in advance of maximal testicular weights. Sperm production occurred in most birds until early July but had ceased in most by late July.Testes, apparently undergoing regression, were noted significantly (p <.005) more frequently in adults than in yearlings in May and early June at the height of the breeding season. The significance of this observation and some aspects of testicular regression, previously unrecorded, are discussed. Adult birds are more sedentary than most yearlings in the breeding season and, unlike the latter, habitually associate with the same female. These behavioral differences may be related to the observed differences between the age groups in the testicular cycle.

scholarly journals THE EFFECT OF USING BLENDED LEARNING MODEL ON ENHANCING STUDENTS' SPEAKING SKILL IN SENIOR HIGH SCHOOLS

2021 ◽  
Vol 9 (1) ◽  
pp. 92
Author(s):  
Irma Dewi Isda ◽  
Purwati Purwati ◽  
Imran Imran
Keyword(s):  
Data Analysis ◽  
Experimental Design ◽  
Blended Learning ◽  
Quasi Experimental ◽  
Speaking Skill ◽  
The Media ◽  
English Speaking ◽  
The Mean ◽  
English Students ◽  
Speaking Skills

This study aimed at investigating the effect of blended learning on the English-students’ speaking skills at SMAN 2 Patra Nusa Aceh Tamiang. Also, this study investigated students’ level differences of English-speaking skills of SMA Patra Nusa students. Twenty-five students of the eleventh-grade class were involved in this study. This study used a quasi-experimental with pre-experimental design. The instruments used in this study were observation and test (pretest and posttest). The results of data analysis showed that sig. 2-tailed = 0.000 < α (0.05), it means reject H0, accepted Ha. Finding obtained of pretest 77,04 and posttest 88,95. In conclusion, the mean pretest and posttest scores differ significantly. In other words, blended learning positively affects students speaking skills used in the media google classroom at SMA N 2 Patranusa.

scholarly journals The Use of Prezi with KWL Strategy to Enhance Students Reading Comprehension

2019 ◽  
Vol 3 (1) ◽  
pp. 28-37
Author(s):  
Musdalifah Ifah Rahman
Keyword(s):  
Reading Comprehension ◽  
Experimental Design ◽  
Random Sampling ◽  
Alternative Hypothesis ◽  
Sampling Technique ◽  
First Grade ◽  
T Test ◽  
Quasi Experimental ◽  
The Mean ◽  
Cluster Random Sampling

The objectives of this research were to find out whether the use of Prezi with KWL Strategy enhances the reading comprehension and the students’ interest. This research employed quasi experimental design. The population of this research was the first grade students of SMA 2 Enrekang in academic 2017/2018. This research employed cluster random sampling technique. The sample consisted of 72 students which belong to two classes; 36 students in experimental class and also 36 students in control class. Research instruments were used to collect the data in this research namely reading comprehension test and questionnaire. The result of the students’ reading score in this research showed that the experimental class improved significantly from 69.69 up to 86.61. While, in control class the result improved from 66.22 up to 75.89. Therefore, the significant values of Independent t-test 0.000 < α = 0.05. It means that the alternative hypothesis (H1) was accepted. Moreover, based on the students’ response on questionnaire showed that the mean score of interest was 80.61 and it was categorized as interested.

scholarly journals The Effect of Rekattidiri Ovitrap towards Aedes aegypti Larval Density

2017 ◽  
Vol 6 (1) ◽  
pp. 80
Author(s):  
Malik Saepudin ◽  
Soeharyo Hadisaputro ◽  
Ari Suwondo ◽  
Suhartono Suhartono
Keyword(s):  
Experimental Design ◽  
Aedes Aegypti ◽  
Larval Density ◽  
Hemorrhagic Fever ◽  
Control Group ◽  
P Value ◽  
Dengue Disease ◽  
Density Index ◽  
Quasi Experimental ◽  
The Mean

Dengue Hemorrhagic Fever (DHF) is a health problem in Indonesia. The entire region of Indonesia at risk of contracting dengue disease. The study aims to prove the effect of modifications ovitrap rekattidiri on the density of larvae (HI: House Index, CI: Container Index and BI: Breteu Index) as well as comparing the differences between the mean larvae trapped between ovitrap Rekattidiri with standard ovitrap. Using a quasi experimental design, time series experimental design with Control group. Population subjects were Aedes aegypti at the endemic sites in Pontianak, West Borneo. The results showed larval density index in the intervention area decreased each ie HI from 26% to 3%, CI of 6.95% to 2.19 %, and BI from 29% to 13%. The number of larvae trapped in ovitrap rekattidiri ie 70% (12,770 larvae) more than the standard ovitrap in the control and intervention, namely: 17% (3,057 larvae) and 13% (2,334 larvae). It is concluded that there are significant modifications Rekattidiri ovitrap against larval density index (HI p-value: 0.025, CI p-value: 0.052, BI value of p: 0.04) and there are differences between the mean larvae trapped in ovitrap Rekattidiri and standard ovitrap with p value: 0.001.

scholarly journals A New Exclusive Breastfeeding Booklet to Improve Self-Efficacy

2021 ◽  
pp. 870-880
Author(s):  
Suryani Hartati ◽  
Nuraini Hakim
Keyword(s):  
Health Care ◽  
Experimental Design ◽  
Health Education ◽  
Exclusive Breastfeeding ◽  
Health Care Professionals ◽  
Self Efficacy ◽  
Postnatal Period ◽  
Quasi Experimental ◽  
The Mean ◽  
Provide Health Education

Breastfeeding self-efficacy is defined as the mother’s belief in their ability to breastfeed the baby. Health education is important to increase the mother’s confidence. The purpose of this study was to test the effect of an exclusive breastfeeding booklet to increase breastfeeding self-efficacy in prenatal mothers until the postnatal period. This study was conducted using a quasi-experimental design. The results showed that providing a booklet for mothers increased self-efficacy towards exclusive breastfeeding with the mean after intervention was 60.97, p<0.005. Our study suggests health care professionals provide health education and motivate mothers to improve their confidence with regards to breastfeeding for at least six months.   Keywords: Breastfeeding self-efficacy, exclusive breastfeeding, health education

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