scholarly journals The effects of gender on problem solving skills of nursing students in Turkey: a meta-analysis studyTürkiye’deki hemşirelik öğrencilerinin problem çözme düzeylerine cinsiyetin etkisi: Bir meta analiz çalışması

2019 ◽  
Vol 16 (1) ◽  
pp. 134
Author(s):  
Filiz Kantek ◽  
Hande Yeşilbaş
Keyword(s):  
Nursing Students ◽  
Problem Solving ◽  
Publication Bias ◽  
Effect Size ◽  
Nursing Student ◽  
Meta Analysis ◽  
English Summary ◽  
Student Nurse ◽  
Problem Solving Skills ◽  
Fail Safe

The aim of this study is to the effects of gender on problem solving skills of nursing student using meta-analysis method in Turkey. Online databases were scanned to reach studies to be included in the survey. In scanning 'problem solving', 'student nurse', 'Turkey', 'problem solving skill' keywords were used in Turkish and English. Six studies that meet the criteria were included in the study. The CMA statistical program was used in the analysis of the data. Q and I2 values to test heterogeneity and, Orwin's Fail-Safe N and Tau coefficients to publication bias of the included studies were calculated. A random effects model was used to examine the effect size. The six studies' total sample size was 2079 nursing students, 436 male and 1643 female. Heterogeneity and publication bias test showed that studies were heterogeneous and there was not publication bias. The mean effect size on gender problem solving was calculated as 0.079. In conclusion, it was identified that the effect of gender on problem solving level of student nurses was insignificant for women. For future studies, it will be useful to conduct meta-analysis studies on the different factors that affect the problem solving level of student nurses.Extended English summary is in the end of Full Text PDF (TURKISH) file. ÖzetBu çalışmanın amacı, meta analiz yöntemi kullanarak Türkiye’deki hemşirelik öğrencilerinin problem çözme beceri düzeylerine cinsiyetin etkisini belirlemektir. Online very tabanları kullanılarak araştırmaya dahil edilecek çalışmalara ulaşıldı. Taramada ‘problem çözme-problem solving’, ‘öğrenci hemşire- student nurse’’, ‘Türkiye-Turkey’, ‘problem çözme becerisi- problem-solving skill’ anahtar kelimeleri kullanıldı. Dahil edilme kriterlerine uygun olan altı çalışma araştırmaya dahil edildi. CMA istatistik programını kullanarak veri analizi sağlandı. Meta analize dahil edilen çalışmaların heterojenliğini ve yayın yanlılığını test etmek için Q ve I2 değerleri, Orwin’s Fail-Safe N ve Tau katsayısı hesaplandı. Etki büyüklüğünün incelenmesinde rastgele etkiler modeli kullanıldı. Araştırmaya dahil edilen altı çalışmanın toplam örneklem büyüklüğü 2079 hemşirelik öğrencisi olup, 436’sı erkek ve 1643’ü kadındı. Heterojenlik ve yayın yanlılığı testi çalışmaların heterojen olduğunu ve yayın yanlılığının olmadığını gösterdi. Cinsiyetin problem çözme üzerine ortalama etki büyüklüğü 0.079 olarak hesaplandı. Sonuç olarak öğrenci hemşirelerin problem çözme düzeyine cinsiyetin etkisinin kadınlar lehine önemsiz düzeyde olduğu belirlendi. Gelecek çalışmalar için öğrenci hemşirelerin problem çözme düzeyini etkileyen farklı faktörlere ilişkin meta analiz çalışmalarının yapılması yararlı olacaktır.

Steep discounting of delayed monetary and food rewards in obesity: a meta-analysis

2016 ◽  
Vol 46 (11) ◽  
pp. 2423-2434 ◽  
Author(s):  
M. Amlung ◽  
T. Petker ◽  
J. Jackson ◽  
I. Balodis ◽  
J. MacKillop
Keyword(s):  
Publication Bias ◽  
Effect Size ◽  
Meta Analysis ◽  
Case Control ◽  
Medium Effect ◽  
Primary Analysis ◽  
Medium Effect Size ◽  
Meta Regression ◽  
Fail Safe ◽  
The Relationship

BackgroundAn increasing number of studies have investigated delay discounting (DD) in relation to obesity, but with mixed findings. This meta-analysis synthesized the literature on the relationship between monetary and food DD and obesity, with three objectives: (1) to characterize the relationship between DD and obesity in both case–control comparisons and continuous designs; (2) to examine potential moderators, including case–control v. continuous design, money v. food rewards, sample sex distribution, and sample age (<18 v. >18 years); and (3) to evaluate publication bias.MethodFrom 134 candidate articles, 39 independent investigations yielded 29 case–control and 30 continuous comparisons (total n = 10 278). Random-effects meta-analysis was conducted using Cohen's d as the effect size. Publication bias was evaluated using fail-safe N, Begg–Mazumdar and Egger tests, meta-regression of publication year and effect size, and imputation of missing studies.ResultsThe primary analysis revealed a medium effect size across studies that was highly statistically significant (d = 0.43, p < 10−14). None of the moderators examined yielded statistically significant differences, although notably larger effect sizes were found for studies with case–control designs, food rewards and child/adolescent samples. Limited evidence of publication bias was present, although the Begg–Mazumdar test and meta-regression suggested a slightly diminishing effect size over time.ConclusionsSteep DD of food and money appears to be a robust feature of obesity that is relatively consistent across the DD assessment methodologies and study designs examined. These findings are discussed in the context of research on DD in drug addiction, the neural bases of DD in obesity, and potential clinical applications.

scholarly journals Effects of instruction based on realistic mathematics education on mathematics achievement: A meta-analysis studyGerçekçi matematik eğitimi destekli öğretimin matematik başarısına etkisi: Bir meta-analiz çalışması

2015 ◽  
Vol 12 (2) ◽  
pp. 187 ◽  
Author(s):  
Abdullah Kaplan ◽  
Murat Duran ◽  
Muhammet Doruk ◽  
Mesut Öztürk
Keyword(s):  
Mathematics Education ◽  
Mathematics Achievement ◽  
Publication Bias ◽  
Effect Size ◽  
Meta Analysis ◽  
Statistical Significance ◽  
Realistic Mathematics Education ◽  
Realistic Mathematics ◽  
Study Process ◽  
Fail Safe

<p>The purpose of this research is to determine the overall effect of instruction based on realistic mathematics education on mathematics achievement. The Meta-Analysis method recently increased in popularity in the field of educational science is used to accomplish this goal. Some criterions have been put in the determination of the study included in the survey and 12 national thesis in accordance with these criterions constituted the sample of this study. Process effectiveness method of meta-analysis is used in the analysis of data and Hedges’s g is used in the calculation of effect size of the study. At the end of the study, realistic mathematics education has an overall, positive and moderate effect on the mathematics achievement (Q = 16.406; p = 0.127). Howewer, the distribution of the effect sizes of the studies included in the survey are found to be homogeneous. At the end of the Z test carried out for the purpose of statistical significance, the value of effect size is observed statistically significant (Z = 7.966; p &lt;0.05). The number of error protection is calculated 91 study to determine the publication bias of the study according to Orwin’s method. According to Orwin’s Fail Safe-N, the research could not have publication bias.</p><p> </p><p><strong>Özet</strong></p><p>Bu araştırmanın amacı gerçekçi matematik eğitiminin matematik başarısı üzerindeki genel etkisini belirlemektir. Bu amacı gerçekleştirmek için eğitim bilimleri alanında yakın zamanda popülerliği artan meta-analiz yöntemi kullanılmıştır. Araştırmaya dâhil edilecek çalışmaların belirlenmesinde bazı kriterler belirlenmiş ve bu kriterlere uygun olan 12 ulusal tez bu araştırmanın örneklemini oluşturmuştur. Verilerin analizinde işlem etkililiği meta analizi yöntemi kullanılmış olup araştırmaların etki büyüklüklerinin hesaplanmasında Hedges’s g kullanılmıştır. Araştırma sonucunda gerçekçi matematik eğitiminin matematik başarısı üzerinde genel olarak, pozitif yönde ve orta düzeyde (Q= 16.406; p= 0.127) etkiye sahip olduğu ve araştırmaya dâhil edilen çalışmaların etki büyüklükleri dağılımının homojen olduğu görülmüştür. İstatistiksel anlamlılık amacıyla yapılan Z testi sonunda etki büyüklüğü değerinin istatistiksel olarak anlamlı olduğu görülmüştür (Z=7.966; p&lt;0.05). Araştırmanın yayın yanlılığını test etmek amacıyla Orwin’in yöntemine göre hata koruma sayısı 91 hesaplanmıştır. Bulunan bu değere göre çalışmanın yayın yanlılığına sahip olmadığı söylenebilir.</p>

Publication and Related Biases

2013 ◽  
Author(s):  
Michael D. Jennions ◽  
Christopher J. Lortie ◽  
Michael S. Rosenberg ◽  
Hannah R. Rothstein
Keyword(s):  
Model Selection ◽  
Publication Bias ◽  
Effect Size ◽  
Statistical Tests ◽  
Meta Analysis ◽  
Narrow Sense ◽  
Funnel Plots ◽  
Trim And Fill ◽  
Fail Safe ◽  
Nonparametric Correlation

This chapter discusses the increased occurrence of publication bias in the scientific literature. Publication bias is associated with the inaccurate representation of the merit of a hypothesis or idea. A strict definition is that it occurs when the published literature reports results that systematically differ from those of all studies and statistical tests conducted; the result is that false conclusions are drawn. The chapter presents five main approaches used to either detect potential narrow sense publication bias or assess how sensitive the results of a meta-analysis are to the possible exclusion. These include funnel plots, tests for relationships between effect size and sample size using nonparametric correlation or regression, trim and fill method, fail-safe numbers, and model selection.

scholarly journals The Effect of Educational Robotic Applications on Academic Achievement: A Meta-Analysis Study

2021 ◽  
Vol 5 (4) ◽  
pp. 512-526
Author(s):  
Tarik Talan
Keyword(s):  
Academic Achievement ◽  
Publication Bias ◽  
Effect Size ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Thinking Skills ◽  
Control Group ◽  
Problem Solving Skills ◽  
Analysis Study ◽  
Robotic Applications

In this study, it was aimed to investigate the experimental studies regarding the effect of educational robotic applications on academic achievement by the meta-analysis method. Within the scope of the research, the studies carried out on educational robotic applications were scanned from national and international databases and selected according to inclusion criteria. The sample of the study consisted of 2606 participants with 1300 in the experimental group and 1306 in the control group. In the study, the effect size values and combined effect size of each study included in the meta-analysis were calculated by using CMA. As a result of the study, it has been found that educational robotic applications have a positive and low level effect on academic achievement according to the random effects model. As a result of the analyzes conducted to reveal the publication bias status of the study, it has been found that there is no publication bias in the meta-analysis study. In addition, it has been found that the effect size of educational robotic applications on academic achievement does not change depending on the subject area and duration of application but changes depending on the sample size. In the other studies to be conducted, the effectiveness of the students in different variables such as computational thinking skills, problem solving skills, attitude, motivation, and anxiety levels can be examined in addition to the variables studied.

scholarly journals A Meta-Analysis on The Effect of Inquiry Learning Model on Students’ Mathematical Problem-Solving Skills

2021 ◽  
Vol 4 (3) ◽  
pp. 302-312
Author(s):  
Rizki Ramadhani ◽  
Dadang Juandi ◽  
Elah Nurlaelah
Keyword(s):  
Problem Solving ◽  
Sample Size ◽  
Effect Size ◽  
Meta Analysis ◽  
Mathematical Problem ◽  
Inquiry Learning ◽  
Learning Model ◽  
Mathematical Problem Solving ◽  
Problem Solving Skills ◽  
8Th Grade

This study examines the effect of the inquiry learning model on the mathematical problem solving ability of students in Indonesia through meta-analysis. This study analyzed seven primary studies that met the inclusion criteria. The effect size index was calculated using the Hedges g equation and statistical analysis using comprehensive meta-analysis (CMA) software. Effect size testing is done by analyzing four characteristics, namely class of study, year of study, and sample size. Based on the results of the analysis using CMA, the inquiry learning model has a moderate effect (0.652) on the overall mathematical problem-solving skills of students. The use of the inquiry learning model is more effectively used in 8th-grade, in the range of 2015-2017 and 2018-2020, the sample size is less than or equal to 30. Thus, it can be seen that the inquiry learning model is useful in improving mathematical problem-solving skills.

scholarly journals Enhancing Mathematical Problem-Solving Skills of Indonesian Junior High School Students through Problem-Based Learning: a Systematic Review and Meta-Analysis

2021 ◽  
Vol 12 (1) ◽  
pp. 1-16
Author(s):  
Suparman Suparman ◽  
Yohannes Yohannes ◽  
Nur Arifin
Keyword(s):  
Systematic Review ◽  
Problem Solving ◽  
Junior High School ◽  
Effect Size ◽  
Meta Analysis ◽  
Mathematical Problem ◽  
Mathematical Problem Solving ◽  
Problem Solving Skills ◽  
Heterogeneous Effect ◽  
Size Data

Many researchers have conducted previous meta-analysis studies regarding problem-based learning (PBL) to enhance problem-solving skills. However, their research does not focus on mathematical problem-solving skills (MPSS). This study aims to summarize, estimate, and evaluate PBL implementation's effect in enhancing the MPSS of Indonesian junior high school (JHS) students and investigate the study characteristics that affect the heterogeneous effect size data. Twenty-nine relevant primary studies published in national and international journals and proceedings during 2011 – 2020 were analyzed using the systematic review and meta-analysis. The analysis tool used the Comprehensive Meta-Analysis (CMA) software by selecting the formula of Hedge to determine its effect size. The result showed that the overall PBL implementation had a medium positive effect (g = 0,743; p less than 0,05), significantly enhancing the MPSS of Indonesian JHS students based on the random effect model. Also, the characteristics of sample size, research area, sampling technique, and publication year did not affect the heterogeneous effect size data. These results suggest that Indonesian JHS mathematics teachers should select PBL as one of the best solutions in implementing mathematics learning in the classroom to enhance students' MPSS.

Emotional intelligence, Personality Variables and Career Adaptability: A Systematic Review and Meta-analysis

2021 ◽  
pp. 097226292198987
Author(s):  
Sakshi Vashisht ◽  
Poonam Kaushal ◽  
Ravi Vashisht
Keyword(s):  
Systematic Review ◽  
Emotional Intelligence ◽  
Publication Bias ◽  
Meta Analysis ◽  
Career Adaptability ◽  
Personality Variables ◽  
Regression Test ◽  
Size Measure ◽  
Fail Safe ◽  
The Relationship

This study conducted a systematic review and meta-analysis to examine the relationship between emotional intelligence, personality variables (Big V personality traits, self-esteem, self-efficacy, optimism and proactive personality) and career adaptability of students. Data were coded on CMA software version 3.0. Product–moment correlation coefficient (r) was considered as the effect size measure for this study. Publication bias was assessed using Egger’s regression test along with Orwin’s fail-safe N, but no significant publication bias was detected. From the results of 54 studies, it was found that all variables of the study had meta-analytic correlation with career adaptability of students. For heterogeneity, subgroup analysis was conducted, and significant differences were found.

scholarly journals Improving students’ mathematical logical intelligence through the online-based integration of local wisdom of Sulapa Eppa Walasuji

2021 ◽  
Vol 12 (2) ◽  
pp. 283-294
Author(s):  
A. Nurannisa F.A ◽  
Andi Muhammad Irfan Taufan Asfar ◽  
Andi Muhamad Iqbal Akbar Asfar ◽  
Adji Syaifullah
Keyword(s):  
Problem Solving ◽  
Effect Size ◽  
Mathematics Learning ◽  
Mathematical Problem ◽  
Real Life ◽  
Control Group ◽  
Control Group Design ◽  
Problem Solving Skills ◽  
Quasi Experimental ◽  
Design Type

Mathematical logical intelligence is one of the skills that are needed in the 21st century related to mathematical problem-solving skills. The importance of this skill is not in line with the facts on the ground, where students are still weak in counting and using logic in problem solving. The purpose of this research is to improve students’ mathematical logical intelligence through the online-based integration of local wisdom of Sulapa Eppa Walasuji. Sulapa Eppa Walasuji is one of the Bugis-Makassar local wisdoms with a unique pattern, appropriate to be used as a medium for learning transformation of geometry. Through the integration of local wisdom, Sulapa Eppa Walasuji can create contextual mathematics learning, so that students can easily understand the material by connecting real-life concepts. This research includes experimental research with a quasi-experimental design of the nonequivalent control group design type. The research instrument used was a mathematical logical intelligence test consisting of five essay questions. The data analysis used is descriptive statistics with gain score and effect size testing. The results showed that the mathematical logical intelligence of experimental class students increased by 43.16 with the effective contribution of the r effect size being 0.910. This indicates that the online-based integration of Sulapa Eppa Walasuji can improve students’ mathematical logical intelligence. 

scholarly journals Influence of Mindfulness and Relaxation on Treatment of Essential Hypertension: Meta-Analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Fushun Zhang ◽  
Yuanyuan Zhang ◽  
Nan Jiang ◽  
Qiao Zhai ◽  
Juanjuan Hu ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Essential Hypertension ◽  
Systolic Blood Pressure ◽  
Publication Bias ◽  
Effect Size ◽  
Meta Analysis ◽  
Biomedical Literature ◽  
Cochrane Library ◽  
Control Group ◽  
Effect Model

Background. Some studies published previously have shown a strong correlation between hypertension and psychological nature including impulsion emotion or mindfulness and relaxation temperament, among which mindfulness and relaxation temperament might have a benign influence on blood pressure, ameliorating the hypertension. However, the conclusion was not confirmed. Objective. The meta-analysis was performed to investigate the influence of mindfulness and relaxation on essential hypertension interventions and confirm the effects. Methods. Systematic searches were conducted in common English and Chinese electronic databases (i.e., PubMed/MEDLINE, EMBASE, Web of Science, CINAHL, PsycINFO, Cochrane Library, and Chinese Biomedical Literature Database) from 1980 to 2020. A meta-analysis including 5 studies was performed using Rev Man 5.4.1 software to estimate the influence of mindfulness and relaxation on blood pressure, ameliorating the hypertension. Publication bias and heterogeneity of samples were tested using a funnel plot. Studies were analyzed using either a random-effect model or a fixed-effect model. Results. All the 5 studies investigated the influence of mindfulness and relaxation on diastolic and systolic blood pressure, with total 205 participants in the control group and 204 in the intervention group. The random-effects model (REM) was used to calculate the pooled effect for mindfulness and relaxation on diastolic blood pressure (I2 = 0%, t2 = 0.000, P = 0.41 ). The random pooled effect size (MD) was 0.30 (95% CI = −0.81–1.42, P = 0.59 ). REM was used to calculate the pooled effect for mindfulness and relaxation on systolic blood pressure (I2 = 49%, t2 = 3.05, P = 0.10 ). The random pooled effect size (MD) was −1.05 (95% CI = −3.29–1.18, P = 0.36 ). The results of this meta-analysis were influenced by publication bias to some degree. Conclusion. All the results showed less influence of mindfulness and relaxation might act on diastolic or systolic blood pressure, when mindfulness and relaxation are used to intervene in treating CVD and hypertension.

scholarly journals The effect of Lego Mindstorm projects on problem solving skills and scientific creativity of teacher candidateÖğretmen adaylarının problem çözme becerilerine ve bilimsel yaratıcılıklarına Lego Mindstorm projelerinin etkisi

2019 ◽  
Vol 16 (1) ◽  
pp. 216
Author(s):  
Berkan Avcı ◽  
Fatma Şahin
Keyword(s):  
Problem Solving ◽  
Data Collection ◽  
Science Teachers ◽  
Prospective Teachers ◽  
Teacher Candidates ◽  
English Summary ◽  
Scientific Creativity ◽  
Problem Solving Skills ◽  
Grade Levels ◽  
Lego Mindstorms

In this study; the effects of Lego Mindstorms projects on problem solving skills and scientific creativity of teacher candidates were. The study group consisted of 20 pre-service science teachers. The data were collected quantitatively and qualitatively. Problem solving and scientific creativity  test were used as quantitative data collection instruments. , Teacher Participant Interview was used as qualitative data collection tool. The practice with teacher candidates lasted 9 weeks.  In this process, pre-service teachers learned the software. Then, these teacher candidates were presented with the science problems appropriate to different grade levels and produced solutions to these problems with Lego EV3 Education sets.Results of the study, the participating teacher candidates identified Lego Ev3 Education sets as creative (25.6%), functional (18.7%), educational (20.9%), developmental (20.9%) and informative (13.9%). As a result of the projects carried out with the Lego Ev3 education sets, the problem solving skills and scientific creativity of the prospective teachers developed.Extended English summary is in the end of Full Text PDF (TURKISH) file. ÖzetBu çalışmada; Lego Mindstorms projelerinin öğretmen adaylarının problem çözme becerilerine ve bilimsel yaratıcılıklarına etkisi incelenmiştir. Araştırmanın çalışma grubunu Fen Bilgisi 3.sınıf öğrencisi 20 öğretmen adayı oluşturmuştur. Araştırmada nicel ve nitel veriler toplanmıştır. Nicel veri toplama araçları olarak problem çözme envanteri ve bilimsel yaratıcılık testi kullanılmıştır. Nitel veri toplama aracı olarak da öğretmen görüş anketi kullanılmıştır. Araştırmanın uygulama süreci 9 hafta sürmüştür. Bu süreçte önce öğretmen adayları yazılımı öğrenmiştir. Sonra bu öğretmen adaylarına farklı sınıf düzeylerine uygun fen problemleri sunulmuş ve bu problemlere Lego EV3 Education setleri ile çözüm üretmişlerdir.Çalışmanın sonuçları, araştırmaya katılan öğretmen adaylarının Lego Ev3 Education setlerini: yaratıcı (%25.6), işlevsel (%18.7), eğitimde uygulanabilir (%20.9), gelişimsel (%20.9) ve bilgiyi uygulayabilir (%13.9) olarak tanımladıklarını ortaya çıkarmıştır. Lego Ev3 education setleri ile yapılan projeler sonucunda öğretmen adaylarının problem çözme becerileri ve bilimsel yaratıcılıkları gelişmiştir.

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