logo logo International Journal of Educational Methodology

IJEM is a leading, peer-reviewed, open access, research journal that provides an online forum for studies in education, by and for scholars and practitioners, worldwide.

Subscribe to

Receive Email Alerts

for special events, calls for papers, and professional development opportunities.

Subscribe

Publisher (HQ)

RHAPSODE
Eurasian Society of Educational Research
College House, 2nd Floor 17 King Edwards Road, Ruislip, London, HA4 7AE, UK
RHAPSODE
Headquarters
College House, 2nd Floor 17 King Edwards Road, Ruislip, London, HA4 7AE, UK

'meta-analytic' Search Results



A Study of Video-Mediated Opportunities for Self-Directed Learning in Required Core Curriculum

self-directed learning self-regulated learning videos core curriculum

Debra Bourdeau , Donna Roberts , Beverly Wood , Johnelle Korioth


...

Improving a required course in our curriculum that has proven to be a challenge for our students was the focus of this study. Surveys of both students and instructors attempted to identify specific problem areas. Using the information from these surveys, the researchers developed a series of videos to explain vital course concepts and deployed these into the course sections. The purpose of the videos is to provide consistency across the multiple modalities in which we offer our courses (including online, classroom and via videoconferencing) and to improve overall student understanding. This project seeks to determine how supplemental content focusing on material identified as “difficult,” by students and instructors, can impact student performance. Challenges include the deployment of the videos across various modalities and obtaining sufficient student feedback.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.3.2.85
Pages: 85-91
cloud_download 765
visibility 1373
4
Article Metrics
Views
765
Download
1373
Citations
Crossref
4

...

Teaching with technology is considered a necessity in the U.S. mathematics classroom. However, few studies have established explicit considerations to support technology-enhanced student achievement. The purpose of this study was to characterize the effectiveness of technology in the mathematics classroom by systematically reviewing meta-analytic research. An exhaustive literature search was conducted. After applying a prioi inclusion criteria the pool of 65 initial meta-analyses was reduce to 13 representative studies. Each study was reviewed and characteristics were coded in four categories: (1) sample, (2) measurement, (3) design, and (4) source. An inductive review of the coded studies produced five unique moderators that were the most salient across studies. Overall mean effect sizes were retrieved or calculated from available study data. Hedges g was used as the common effect size metric for comparison across studies.  The Technological Pedagogical Content Knowledge (TPACK) framework was used to interpret the most salient moderators of effects across studies.  Studies were categorized by didactical functionality and technology type. The results suggest that effects vary by didactical functionality from small to medium. The largest variations were observed for the didactical function of developing conceptual understanding.  Implications for research and instructional praxis are provided.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.2.1.19
Pages: 19-29
cloud_download 1330
visibility 3240
16
Article Metrics
Views
1330
Download
3240
Citations
Crossref
16

Do Leadership Styles Influence Organizational Health? A Study in Educational Organizations

school principals leadership styles organizational health

Mustafa Toprak , Bulent Inandi , Ahmet Levent Colak


...

This research aims to investigate the effect of leadership styles of school principals on organizational health. Causal-comparative research model was used to analyze the relationships between leadership types and organizational health. For data collection, a Likert type Multifactor Leadership scale questionnaire and Organizational Health scale were administered to 151 teachers working primary and secondary schools in Osmaniye city. Data were analyzed by using multiple regression analysis method. Findings of this study indicated significant relationships between school principals' leadership styles and health of schools, that leadership style of school leaders influence organizational health level of a school. Transformational leadership style was also found out to be closely related to a healthy school environment while transactional leadership style is negatively correlated with organizational health. Individual consideration, inspirational motivation, idealized influence, and intellectual stimulation sub-dimensions are found to effective in the formation of organizational health. In the light of the findings, some recommendations were also presented.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.1.1.19
Pages: 19-26
cloud_download 996
visibility 1965
6
Article Metrics
Views
996
Download
1965
Citations
Crossref
6

...

This research aims to combine the results of the studies conducted  in educational organizations between the years 2008-2018 that investigated correlation between organizational trust, and organizational support, organizational citizenship, organizational justice, organizational commitment, mobbing, organizational silence, job satisfaction, organizational cynicism and ethical leadership and obtain an overall result. Within this scope, meta-analytic method was used in the study. A literature review was performed by using the concepts "trust" and "organizational trust".  A total of 43 independent studies were incorporated into the research by considering the selection criteria determined by the researcher. The total sample size (teacher, academician and school administrator) is 22859. The studies included in the research were analyzed according to random effects model (REM). According to the results of the analysis, there is a high positive correlation between organizational trust, organizational justice [r = .70] and ethical leadership [r = .82]; a moderate positive correlation between organizational trust and organizational commitment [r = .51], organizational support [r = .57], organizational citizenship [r = .43] and job satisfaction [r = .61]. In addition, there was a moderate negative correlation between organizational trust, organizational cynicism [r = -.62] and organizational silence [r = -.30]; and also a low negative correlation between organizational trust and mobbing [r = -.24]. Based on these findings, the high level of organizational justice, organizational support and ethical leadership perceptions of the education stakeholders increase level of organizational trust; whereas the high level of organizational trust increases their job satisfaction, organizational citizenship behaviors and organizational commitment, and reduces organizational cynicism and organizational silence perceptions. In addition, employees' exposure to mobbing causes a decrease in organizational trust levels.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.4.4.287
Pages: 287-302
cloud_download 1035
visibility 1930
13
Article Metrics
Views
1035
Download
1930
Citations
Crossref
13

...

This study aims to explore the effect of students’ family socio-economic status, gender, family support, learning motivation and peer relationships and teachers’ equity on the victims of school bullying in Hong Kong. Additionally, the model was analyzed by SEM. The participants in this study were 15 year-old middle school students living in Hong Kong. The data were collected from the PISA 2015 database and the valid number was 4856. The results indicating that family support, peer relationships, and teacher fairness have a negative influence on school bullying. Family support affects one’s risk of being bullied by influencing learning motivation. Peer relationship affects one’s risk of being bullied by influencing learning motivation. Teacher fairness affects one’s risk of being bullied by influencing learning motivation.  

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.1.111
Pages: 97-107
cloud_download 1160
visibility 1568
12
Article Metrics
Views
1160
Download
1568
Citations
Crossref
12

Scopus
0

...

By using multi-level modeling, this study explores the impact of students’ perception of the quality of the teacher-student relationship and family structure on student achievement after controlling for socioeconomic status (SES), school urbanicity, and school control. The data from 750 schools and 17,000 10th grade students were analyzed. Family structure and student’s perception of teacher-student relationship, and SES were student-level; school urbanicity and school control were school-level variables. The findings indicated that students, who had a positive perception about their relationship with their teachers, came from families including two biological parents, and had high SES and high math achievement. Students’ SES and attending public school in urban areas were found to be significantly related to students’ math achievement. The math score for public school students was lower than students from private and Catholic schools. The further research should have a design addressing the impact of these variables in a longitudinal term.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.1.131
Pages: 117-133
cloud_download 1133
visibility 1699
6
Article Metrics
Views
1133
Download
1699
Citations
Crossref
6

Scopus
0

...

The aim of the study is to examine the pre-service teachers’ problem solving skills and curiosity levels according to different variables and to determine whether there is a relationship between them. The research was designed as a descriptive study in the survey model. The sample of the study consists of 1st and 4th grade pre-service teachers in the departments of German, Science, English, Mathematics, Music, Pre-school, Painting, English, Mathematics, Turkish Language Teaching at a university in Turkey. “Curiosity Scale” adapted into Turkish by Demirel and Diker Coskun, “Problem Solving Inventory” adapted into Turkish by Sahin, Sahin and Heppner  and “Personal Information Form” prepared by the researcher were used as data collection tools. In the analysis of the data obtained, SPSS-Windows 22.00 package program was used and descriptive statistics and parametric tests were applied in accordance with the sub-problems of the study. In addition, a correlation analysis was conducted to determine whether there was a relationship between pre-service teachers’ problem solving skills and curiosity levels. Based on the findings, suggestions about the problem solving skills and curiosity levels of the prospective teachers were presented.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.5.1.163
Pages: 151-164
cloud_download 717
visibility 1343
3
Article Metrics
Views
717
Download
1343
Citations
Crossref
3

Scopus
0

...

Shared leadership enables employees to develop positive feelings for their organizations and themselves. Especially, their devotional feelings and behaviours towards their organizations increase with the sharing of leadership. In this study, the shared leadership of the school and the organizational commitment levels of the teachers, their relationship with each other and the predictive status were examined. This study is a research within relational survey model. The data of the research were collected from 512 teachers in primary and secondary schools in Malatya districts of Turkey in the 2019-2020 academic year. The data were collected through the Shared Leadership Scale and the Organizational Commitment Scale of Teachers. For the analysis of the data, t-test, ANOVA test, correlation and regression analyzes were performed. According to the results of the research, shared leadership and organizational commitment levels in primary and secondary schools are high. There is a positively significant and moderate correlation between the shared leadership of the school and the organizational commitment of teachers. Shared leadership in primary and secondary schools positively and significantly predicts teachers' organizational commitment. For this reason, in order to increase the organizational commitment of teachers; it is important to create a sharing school life, in order to support teachers for the purposes of the organization and to include them in decision-making processes. According to the results obtained, it is recommended that young teachers with lower organizational commitment be given more duties, powers and responsibilities.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.6.3.613
Pages: 613-629
cloud_download 792
visibility 1260
8
Article Metrics
Views
792
Download
1260
Citations
Crossref
8

Scopus
0

...

The aim of the present study is to examine the effect level of procrastination on academic achievement. To this end, a meta-analytic approach was applied and the studies published between January 2000 and May 2020 in Education Resources Information Center (ERIC) and Academic Search Ultimate databases were included in the study. The research was limited to articles examining the correlation between the variables and, accordingly, the correlation coefficient was specified as an index to identify the effect size. After reviewing 22 relevant studies with 8307 participants, the meta-analysis was conducted through Comprehensive Meta-Analysis (CMA) software. The findings revealed that the variables were negatively correlated with each other and the overall effect size of procrastination on academic achievement was found -0.61, which can be interpreted as the medium effect size. The findings of the study endorse the main tenets of theoretical framework regarding the aforementioned link.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.6.4.681
Pages: 681-690
cloud_download 24967
visibility 9784
9
Article Metrics
Views
24967
Download
9784
Citations
Crossref
9

Scopus
0

...

This quantitative study aims to examine the relationships between enabling school structure, academic optimism and altruistic behaviours as well as to find out whether altruistic behaviours serve as a mediator between enabling school structure and academic optimism. A scale was applied to teachers from primary- schools in Turkey via random sampling. There were 707 teachers participating in this study. Three existing scales, which are enabling school structure, academic optimism, and teachers’ altruistic behaviours scales, were used to collect data from teachers. Descriptive statistics and bivariate correlations were calculated in the study to investigate correlations among all the variables and reliabilities of the measures. Structural Equation Modelling investigated the effects of Enabling School Structure on School Academic Optimism through Teachers’ Altruistic Behaviours. The results confirmed a positive relationship between all variables of the study. The findings also revealed the mediator effect of TAB on the relationship between ESS and SAO. Finally, some recommendations were given based on results.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.7.1.137
Pages: 137-154
cloud_download 863
visibility 1191
4
Article Metrics
Views
863
Download
1191
Citations
Crossref
4

Scopus
0

Presenting the Meta-Performance Test, a Metacognitive Battery based on Performance

metacognition assessment content validity performance tests

Marcio Alexander Castillo-Diaz , Cristiano Mauro Assis Gomes


...

The self-report and think-aloud approaches are the two dominant methodologies to measure metacognition. This is problematic, since they generate respondent and confirmation biases, respectively. The Meta-Performance Test is an innovative battery, which evaluates metacognition based on the respondent's performance, mitigating the aforementioned biases. The Meta-Performance Test consists of two tests, the Meta-text, which evaluates metacognition in the domain of reading comprehension, and Meta-number, in the domain of arithmetic expressions solving. The main focus of this article is to present the development of the battery, in terms of its conceptual basis, development strategies and structure. Evidence of its content validity is also presented, through the evaluation of three experts in metacognition, two experts in Spanish language, two experts in mathematics and five students who represent the target population. The results of the judges' evaluations attested to the Meta-Performance Test content validity, and the target population declared that both the battery understanding and taking are adequate. Contributions and future research perspectives of the Meta-Performance Test in the field of metacognition are discussed.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.7.2.289
Pages: 289-303
cloud_download 1473
visibility 2690
2
Article Metrics
Views
1473
Download
2690
Citations
Crossref
2

Scopus
2

...

Individuals’ engagement with reading and maintaining it depends on personal motivations. Having a multidimensional structure, reading motivation is affected by intrinsic factors. Studies on reading motivation can make a significant contribution to identifying students’ intrinsic motivation profiles closely, encouraging them to read, and increasing their reading engagement. The present study aimed to determine the individual and socioeconomic variables predicting middle school students’ intrinsic reading motivations. Employing the predictive correlational design, the study was carried out with 459 students attending six different public schools in the city of Sanliurfa. The participants were determined by stratified purposeful sampling method. The study data were collected by the Intrinsic Reading Motivation Scale and the Personal Information Form. According to the hierarchical regression analysis results, all the models constructed in the study were significant. All of the variables explained the intrinsic reading motivation with a 22% variance explanation percentage. As a result, it can be said that the change observed in intrinsic reading motivation variance mostly stemmed from reading engagement (ΔR2=.12), family (ΔR2=.07), demographic characteristics (ΔR2=.03), and school (ΔR2=.01), respectively. It can be stated that the predictors of the intrinsic reading motivation determined in this study should be taken into consideration by educators.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.7.3.401
Pages: 401-410
cloud_download 474
visibility 1262
0
Article Metrics
Views
474
Download
1262
Citations
Crossref
0

Scopus
0

...

Science literacy, which is included in Programme for International Student Assessment (PISA) as an assessment area, is an important research and discussion area of science education literature with all its dimensions. In this study, the clustering results of the students from 34 Organization for Economic Cooperation and Development (OECD) countries participating in the PISA 2015 test and sampled by systematic sampling method are obtained by K-Means Clustering and Two-Step Cluster Analysis using the factor scores and PISA science literacy average scores. It is thought that the study is of great importance in terms of dividing individuals into clusters according to science instruction methods and the mean of plausible values and having an idea about how each cluster is defined. As a result of the K-means cluster analysis, it was determined that the input variable with the highest level of importance in the formation of the first and third clusters in which the students with the highest scores were included was teacher-directed science instruction, and after this variable, the input variable with the highest level of importance was the perceived feedback from science teachers. Within the scope of the Two-Step Clustering Analysis, it was determined that teacher-directed science instruction has the most importance in terms of the decomposition of clusters, followed by adaptive instruction in science lessons in terms of importance level.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.7.3.487
Pages: 487-500
cloud_download 278
visibility 718
0
Article Metrics
Views
278
Download
718
Citations
Crossref
0

Scopus
0

...

The following study highlights the importance of Social Emotional Learning (SEL) and provides a descriptive overview of the Collaborative for Academic Social and Emotional Learning (CASEL) organization competencies at both the national and state level. Qualitative data was collected during a study conducted on at-risk Hispanic high school students who engaged in a mindfulness yoga program. Adolescents voluntarily participated in 12 weeks of mindfulness yoga (24 classes) and provided post essay responses to questions associated with the five core competencies of SEL: self-awareness, self-management, social awareness, relationship skills, and responsible decision making. Evidence aligned with SEL competencies after 24 mindfulness yoga sessions through implicit yoga instruction (absence of explicit direct instruction) were coded and reported accordingly. Overall, findings indicate consistencies with previous research on mindfulness yoga programs in the schools of the impactful benefits of healthy behaviors and mental wellness for adolescents at risk. Documented conclusions from this study showcase an increased positive impact on SEL categories of self-awareness, self-management, and decision making.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.7.4.615
Pages: 615-622
cloud_download 587
visibility 926
0
Article Metrics
Views
587
Download
926
Citations
Crossref
0

Scopus
0

...

This study explores the relationship among the internal locus of control, entrepreneurial alertness, entrepreneurial opportunity recognition, and entrepreneurial intentions of college students. The scales of internal locus of control, entrepreneurial alertness, entrepreneurial opportunity recognition, and entrepreneurial intention have been used to conduct a questionnaire survey among 921 undergraduates from four universities in China. The results show four key findings. First, the internal locus of control has a positive and significant impact on entrepreneurial intention. Second, entrepreneurial alertness plays a mediating role in the relationship between internal locus of control and entrepreneurial intention. Third, entrepreneurial opportunity recognition plays a mediating role in the relationship between the internal locus of control and entrepreneurial intention. Finally, entrepreneurial alertness and entrepreneurial opportunity recognition have a chain mediation effect on the relationship between the internal locus of control and entrepreneurial intention. The study proposes suggestions and future research directions based on the research results, serving as a reference for entrepreneurial education and entrepreneurship planning of college students.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.8.1.141
Pages: 139-149
cloud_download 536
visibility 1111
5
Article Metrics
Views
536
Download
1111
Citations
Crossref
5

Scopus
4

Greek Myths to Co-Build Teacher Identity: Perceptions of Students in the Master of Education Research

higher education myths qualitative research teacher identity

Antonio Giner-Gomis , Marcos Jesús Iglesias-Martinez , Inés Lozano-Cabezas , Perla Mayela Brenes-Maltez


...

The objective of this study was to promote the use of metaphorical stories based on classical Greek myths in academic teacher training. The aim is to favour processes of personal assemblage and the constitution of teacher identity. Based on 8 classical myths, 4 of them featuring a female character and another 4 a male character, the group of participants narrated positive as well as disappointing experiences they had lived through during their academic training. Moreover, they selected the myths, among those proposed, that provided the metaphors that best described their specific personal trajectories. Adopting a qualitative approach, we followed a narrative-biographical tradition and collected 37 stories. This narrative corpus was analysed using the AQUAD software. The results showed that classical Greek myths contain and provide a powerful and illuminating narrative scaffolding, helping students to adopt a different perspective in the narration of their own academic trajectories. The myths equally helped them to become more aware of the most genuine life and personal experiences that shaped their own teacher identity.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.8.1.179
Pages: 179-189
cloud_download 304
visibility 730
2
Article Metrics
Views
304
Download
730
Citations
Crossref
2

Scopus
0

...

This research’s aim was to explore the role of cognitive flexibility in mediating the effect of intrinsic motivation on the creativity of junior high school students. A creativity scale, an intrinsic motivation inventory and a cognitive flexibility inventory were utilized to investigate a sample of junior high school students in Shaanxi Province in western China. 765 valid questionnaires were collected and analyzed using the structural equation model (SEM). The SEM analysis showed that intrinsic motivation and cognitive flexibility have significantly positive impacts on junior high school students’ creativity. Furthermore, a full model revealed that cognitive alternatives and cognitive control mediate the relationship intrinsic motivation and creativity, and the mediation effect of cognitive alternatives is significantly greater than that of cognitive control. In general, the current research suggests that the impact of intrinsic motivation on junior high school students’ creativity is mediated by cognitive flexibility, and its results amplify prior scholars’ research results and give educators an inspiration how to cultivate creativity for the middle school students.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.8.2.297
Pages: 297-312
cloud_download 580
visibility 1036
2
Article Metrics
Views
580
Download
1036
Citations
Crossref
2

Scopus
0

...

This study reviews 60 papers using a Likert scale and published between 2012 – 2021. Screening for literature review uses the PRISMA method. The data analysis technique was carried out through data extraction, then synthesized in a structured manner using the narrative method. To achieve credible research results at the stage of the data collection and data analysis process, a group discussion forum (FGD) was conducted. The findings show that only 10% of studies use a measurement scale with an even answer choice category (4, 6, 8, or 10 choices). In general, (90%) of research uses a measurement instrument that involves a Likert scale with odd response choices (5, 7, 9, or 11) and the most popular researchers use a Likert scale with a total response of 5 points. The use of a rating scale with an odd number of responses of more than five points (especially on a seven-point scale) is the most effective in terms of reliability and validity coefficients, but if the researcher wants to direct respondents to one side, then a scale with an even number of responses (six points) is possible. more suitable. The presence of response bias and central tendency bias can affect the validity and reliability of the use of the Likert scale instrument.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.8.4.625
Pages: 625-637
cloud_download 1830
visibility 5371
26
Article Metrics
Views
1830
Download
5371
Citations
Crossref
26

Scopus
4

Rethinking the Components of Regulation of Cognition through the Structural Validity of the Meta-Text Test

metacognition performance-based testing regulation of cognition structural validity

Marcio Alexander Castillo-Diaz , Cristiano Mauro Assis Gomes , Enio Galinkin Jelihovschi


...

The field of studies in metacognition points to some limitations in the way the construct has traditionally been measured and shows a near absence of performance-based tests. The Meta-Text is a performance-based test recently created to assess components of cognition regulation: planning, monitoring, and judgment. This study presents the first evidence on the structural validity of the Meta-Text, by analyzing its dimensionality and reliability in a sample of 655 Honduran university students. Different models were tested, via item confirmatory factor analysis. The results indicated that the specific factors of planning and monitoring do not hold empirically. The bifactor model containing the general cognition regulation factor and the judgment-specific factor was evaluated as the best model (CFI = .992; NFI = .963; TLI = .991; RMSEA = .021). The reliability of the factors in this model proved to be acceptable (Ω = .701 & .699). The judgment items were well loaded only by the judgment factor, suggesting that the judgment construct may actually be another component of the metacognitive knowledge dimension but having little role in cognition regulation. The results show initial evidence on the structural validity of the Meta-Text and give rise to information previously unidentified by the field which has conceptual implications for theorizing metacognitive components.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.8.4.687
Pages: 687-698
cloud_download 1085
visibility 1646
2
Article Metrics
Views
1085
Download
1646
Citations
Crossref
2

Scopus
1

Natural Disaster Education in School: A Bibliometric Analysis with a Detailed Future Insight Overview

bibliometric analysis; natural disaster; natural disaster education; natural disaster literacy

Antomi Saregar , Sunyono , Een Yayah Haenilah , Hasan Hariri , Fredi Ganda Putra , Rahma Diani , Misbah , Rofiqul Umam


...

In some places of the world, disasters occur virtually every day. If disasters are not properly foreseen, they may result in many fatalities. This research aims to examine the growth and pattern of literature on natural disaster education in schools. This analytical strategy combines quantitative and statistical methods to discover trends, assess quality, and track development. A total of 216 documents were chosen from the 403 documents collected. Following 2015, there was a considerable increase in four-year publications. Authors from the United States contributed to 45 papers with 37% citations and ranked first, followed by authors from Japan (31 documents; 15% citations) and Indonesia (31 documents) with rankings citations below the top 10. Most publications were published in the International Journal of Disaster Risk Reduction (12 docs; Q1 Scimago Journal Rank 1.1 (SJR 1.1)). The Journal of Child Psychology and Psychiatry and Allied Disciplines had the most citations (100; Q1 SJR 3.6) and was ranked first in its discipline. The existing core literature on school education on natural disasters demonstrates that this topic is developing rapidly, but with insufficient international research collaboration. Research cooperation in this area must be strengthened to better the global response to natural disaster mitigation, which should begin in schools worldwide. There is a need to widen the scope of study in this field to include natural disaster preparedness education in the school curriculum, assessments, learning media, disaster response education, and instructional designs. Finally, disaster education in schools must be addressed as soon as possible to contribute to disaster preparedness.

description Abstract
visibility View cloud_download PDF
10.12973/ijem.8.4.743
Pages: 743-757
cloud_download 652
visibility 1295
6
Article Metrics
Views
652
Download
1295
Citations
Crossref
6

Scopus
0

...