Students’ views of uncertainty in formal and personal science

Background: Uncertainty is a crucial element of scientific knowledge growth. Students should have some understanding of how science knowledge is developed and why scientific conclusions are considered more or less certain than others. A component of the nature of science, it is considered an important aspect of science education and allows students to recognize the limitations of scientific research.

Purpose: This study examined Grades 5 and 9 students’ views of uncertainty in their personal scientific research and the formal scientific research of professionals.

Sample: This study included 33 students in Grade 5 (n = 17) and Grade 9 (n = 16). The students were recruited from a charter school that emphasised inquiry instruction.

Design and methods: Data were collected through interviews. Students were asked their views of their inquiry-based projects and their views of professional science.

Results: Interview data and statistical analyses indicated that students recognized uncertainty in personal science, which varied across elements of the scientific process. Additionally, their views of uncertainty in formal science tended to change across grades and knowledge of uncertainty in personal and formal science were positively correlated.

Conclusion: These findings offer insights into the processes by which students come to understand uncertainty in science and point to ways of fostering such knowledge through teaching practices.     

Characteristics of effective leadership networks: a replication and extension

Purpose: Replicating and extending earlier research, this mixed-methods study inquired about the characteristics of effective school leadership networks and the contribution of such networks to the development of individual and collective leaders’ professional capacities.

Design: The study used path analytic techniques with survey data provided by 283 school and district leaders to test a path model of effective network characteristics. Interview data were provided by 23 school leaders. Variables in the model included Network leadership, structure, health, connectivity, and outcomes.

Findings: Results confirmed that the model was a very good fit with the data and, as a whole, explained 51% of the variation in network outcomes. Network leadership had the largest total effect on network outcomes, followed closely by the effects of Network Health and Network Connectivity. Interview data confirmed the nature of variables measured by the survey and added additional features for future research. Most results replicated the previous study.

Research Limitation: The study was limited to leadership networks intentionally organised within districts, not networks organised by school leaders themselves or networks arising spontaneously by their members. Results cannot be generalised to other types of networks.

Practical implication: In addition to a focus on single unit leadership development in districts, systematic initiatives should be designed to help prepare network leaders to foster the forms of collaboration that are so central to professional capacity development.

Originality: Results of the study offer explicit guidance to network leaders about how to improve the contribution of network participation to their colleagues’ capacities; it is one of a very small number studies in educational contexts to provide such guidance.     

Exploring the structure of science learning self-efficacy: the role of science learning hardiness and perceived responses to capitalization attempts among Taiwanese junior high school students

Background: Despite the growing body of research on self-efficacy, previous studies have failed to clarify exactly how it is constructed. Meanwhile, the literature indicates that, in Taiwan, junior high school students tend to show lower self-efficacy in learning science compared with elementary and senior high school students.

Purpose: This study aimed to develop a mediational model providing the factors accounting for Taiwanese junior high school adolescents’ science learning self-efficacy (SLSE), especially from the perspectives of both interpersonal and intrapersonal factors.

Design: We therefore proposed a mediational model to delineate the relationships among students’ perceived responses to capitalization attempts – science learning (PRCA-SL), science learning hardiness (SLH) and SLSE by conducting structural equation modeling (SEM).

Sample: A total of 1,170 junior high school students in Taiwan were invited to take part in the study.

Results: The results confirmed our hypothesis that students’ PRCA-SL fostered their science learning hardiness, which in turn contributed to their science learning self-efficacy.

Conclusions: The findings confirmed the mediational model wherein science learning hardiness completely mediated the relationship between PRCA-SL and science learning self-efficacy.     

Students’ attitudes towards online pre-laboratory exercises for a physics extended curriculum programme

Background: Students’ well preparedness for laboratory sessions is of importance for a number of reasons including them being able to engage in and learn from the session and in acquiring the necessary laboratory skills needed for the scientific community and for possible further work in industry. To enhance the preparedness of the students an online environment was designed, developed and implemented in a structured logical manner.

Purpose: The purpose of this exploratory study is to investigate student perceptions in a Science Extended Curriculum Program (ECP) of both the traditional pen and paper method they used in 2016, and the new online resource method they used in 2017 to better prepare them for Physics laboratories, and to compare the two methods.

Sample: N = 51 students from a first-year Extended Curriculum Programme in physics at a South African university voluntarily participated in this study.

Design and methods: The research was conducted using two non-standardised structured questionnaires where the enrolled ECP students were asked both open-ended – and closed questions (using a Likert response scale). Google Forms using graphs assessed these responses. An additional source of data was iKamva/Sakai which is the University of Western Cape’s institutional Learning Management (LMS) system, which allowed for detailed information regarding online activities.

Results: Four main research questions focussing on preparedness, time spent, lab activities and online resources were identified. Findings from these suggest that an introduction of an online environment positively affected the students’ perceptions of the online environment for pre-laboratory preparation in comparison with using traditional pen and paper.

Conclusions: The present study has successfully managed to both reveal that the introduction of online environment for Physics laboratories brought about some positive benefits as perceived by the students, as well as fruitful avenues for future research. While more work is needed, in terms of research and continuing evaluation of eLearning in Physics education, there is reason to be positive in terms of renewed emphasis to add blended learning within the broader Physics learning and teaching communities.     

Actor social networks as knowledge sharing mechanisms in multi-stakeholder processes: a case of coffee innovation platforms of Uganda

Purpose: This study examined knowledge sharing mechanisms in coffee IPs and their effect on actor linkages in four districts of Uganda.

Design/methodology/approach: Thirty one respondents from the public and private sector were interviewed using a qualitative approach. Data were analyzed using the Atlas ti qualitative software version 7.5.18 to generate themes for information sources, types and channels. Social network analysis was used to measure the actor centrality positions and influence in the IP network.

Findings: Results revealed seven main categories of actors in the Coffee IPs who shared information on coffee inputs, agronomic practices, processing and markets through three main channels. Level of cohesion was less than 10% which had negative implications on the knowledge flow, trust and collaboration among the actors. Influential positions were occupied by the processors and farmer leaders in IPs in the southern districts of Luwero and Rakai, while nursery operators were most influential in IPs of the western districts of Ntungamo and Bushenyi. Weak linkages within the social networks indicated that initiatives of the actors were fragmented, as each actor acted as an individual detached from the platform activities limiting inter-actor knowledge sharing.

Practical implications: Innovation intermediaries should focus on integrated systemic and innovative approaches to strengthen actor social linkages for knowledge sharing and better platform performance.

Theoretical implications: Actor positions and relationships in innovation networks are critical tenets for fostering knowledge exchange and performance. In an innovation platform, diverse actors are multiple sources for accessing information within a given social and institutional context.

Originality/value: The study contributes to existing debate and knowledge on institutional change in agricultural innovation systems.     

The role of inquiry-based self-efficacy,achievement goal orientation,and learning strategies on secondary-school students’ inquiry skills

Background: In recent years, science curricula (chemistry, physics, biology, earth science, life science, etc.) in many countries have been prepared and applied according to the inquiry-based learning approach. Although the acquisition and application of the inquiry skills are one of the important objectives of the science curriculum, the inquiry skills of each student do not enhance at the same level. The inquiry level of the learning environment; the importance and value attached to the inquiry in that environment, students who have different goals when attending to the learning environments, and students who do not get involved in the learning process at the same level can be shown as the reasons of this.

Purpose: The purpose of this research is to examine both the direct and indirect relationships between the inquiry-based self-efficacy, the achievement goal orientation, the learning strategies, and the inquiry skills variables.

Sample: This research was conducted during the 2015-2016 school year among 498 seventh and eighth graders at public schools in Turkey’s Ayd?n province.

Design and methods: The Inquiry-based Self-Efficacy Scale, the Goal Orientation Scale, the Learning Approach Scale, and the Inquiry Skills Test were applied to the students. The analysis of data was carried out through the Multilevel Structural Equation Model (MSEM).

Results: The findings related to the first model did not provide evidence for either direct or indirect effects of the inquiry-based self-efficacy on inquiry skills, achievement goal orientation, and learning strategies. However, findings from the final models provided evidence for both direct and indirect effects of separately inquiry-based self-efficacy and the achievement goal orientation on the inquiry skills through the learning strategies.

Conclusions: This study demonstrates the potential that relations with self-efficacy, achievement goal orientation, and task value theory while improving inquiry skills.     

The Draw-a-Scientist Test in an African context: comparing students’ (stereotypical) images of scientists across university faculties

Background: People’s perceptions of scientists have repeatedly been investigated using the Draw-a-Scientist Test (DAST). The test is used to identify people’s (stereotypical) images of scientists, which might affect attitudes towards science and science-related career choices.

Purpose: The current study has two goals. (1) Applying the DAST at a university in South Africa, the study will add to the existing research literature through its Southern African context. (2) The study will also look more closely at the link between (stereotypical) images of scientists and science-related career choices.

Sample: The DAST was applied to first-year students (n = 445) across different faculties at a South African university. If the assumption that young people’s perceptions of scientists influence their career choice is correct, one would expect differences in the drawings made by students who have opted for different fields of study.

Design and methods: The DAST was administered during orientation week of the first-year students in January 2017. Students were provided with a prepared blank sheet of paper and asked to draw a scientist and to fill in further information on the back of the paper. A content analysis applying the DAST checklist was used to analyse the images.

Results: The findings show that South African students use about four stereotypical indicators when drawing a scientist, and social science students drew stereotypical attributes more frequently when compared to students from other faculties. A typical scientist – as depicted in this study – is a man of uncertain age, who wears eyeglasses and a lab coat, and is surrounded by laboratory equipment.

Conclusions: Findings are largely in line with the international research literature. To challenge gender stereotypes, more contact between students and female role models might be essential. If (stereotypical) images really affect science-related career choices deserves further attention in future research studies.     

Public agricultural extension workers as boundary workers: identifying sustainability perspectives in agriculture using Q-methodology

Purpose: To provide farmers with access to salient knowledge on sustainability that could contribute positively to farmers’ livelihoods, there is a need for knowledge facilitators. This paper examines the role of public extension workers as boundary workers in Indonesia on sustainable agriculture and challenges around them.

Design/methodology/approach: To identify sustainability perspectives, this research uses Q-methodology which analyzes individual perspectives on sustainability, their differences, and similarities. This research also employs focus group discussions and interviews. In three regions in Indonesia.

Findings: Q-method resulted in two perspectives. The technologists perceive sustainable agriculture as food security and the use of organic pesticides. They also believe that the responsibility for sustainable agriculture lies with extension workers and governments. The environmentalists believe the concept of sustainability implies the active prevention of environmental degradation. They also believe that everybody should take responsibility for sustainability. The paper determines that boundary work needs highly motivated extension workers; the ability to gain trust from farmers; and government support.

Theoretical implication: This paper contributes to the literature on boundary work by connecting the concept of boundary work to agricultural extension.

Practical implication: The results may be used as inputs for Indonesian policymakers to develop a guideline on sustainable agriculture for extension workers.

Originality/value: In current studies on extension workers in developing countries, an analytical framework which employs the concept of boundary work is hardly found. Boundary work is a relevant concept to depict challenges extension workers are confronted with when brokering. Q-methodology aims to obtain individual perspective on a particular issue. This research provides insight on individual perspectives of extension workers on sustainable agriculture.     

Perception of teaching competencies by administrators,faculty and students of Indian agricultural universities: an assessment of faculty training needs

Purpose: The study aims at finding out relevance and knowledge levels of selected teaching competencies as perceived by educational administrators, faculty and students, in order to assess the training needs of faculty of agricultural universities.

Methodology: Relevance and knowledge levels were tested through a teaching competency questionnaire developed and run on 292 respondents fitting into administrator, faculty and student groups. Needs Assessment Model by Borich [1980. “A Needs Assessment Model for Conducting Follow-up Studies.” Journal of Teacher Education 31 (3): 39–42] is used to identify training needs.

Findings: Results indicate differences in perceptions among groups towards teaching competencies. Prioritized training needs were identified which provide the content and direction for the development of faculty in-service educational programmes.

Practical implications: Faculty of agricultural universities need periodic in-service training programmes in order to improve their teaching competencies so that they become effective and competent teachers in the present educational environment.

Theoretical implications: The statistically validated methodological framework provides for capturing the perception of all stakeholders on the teaching competencies among the faculty members of Agricultural Universities in India, and offers a scope for scaling up the study for similar educational setting in the region.

Originality/value: The perception of students and administrators was also considered along with the self-perception of faculty about the relevance and knowledge levels of teaching competencies.     

Traversing the context of professional learning communities: development and implementation of Technological Pedagogical Content Knowledge of a primary science teacher

Background: Professional learning communities are increasingly recognized for their significance in building teachers’ competencies for educational reform. However, the knowledge development cycle of technological pedagogical content knowledge (TPACK) through multiple professional learning communities is not well researched.

Purpose: This qualitative case study investigates a primary science teacher’s TPACK development in the context of two interdependent learning spaces: a joint-school and a within-school professional learning community. The school’s organizational and sociocultural influences on teacher learning are also examined.

Participant: Teacher Sean (pseudonym) embarked on a science innovation project after two years of teaching in a Singapore mainstream school. He was tasked to integrate mobile-based inquiry learning and visible thinking pedagogical approaches, and to pilot the designed lessons for a primary three class.

Design and methods: A case-study approach involving multiple sources of data with cultural historical activity theory as the analytical lens was employed, to unpack the complementary and contradictory interactions across different interrelated activity systems. The purpose was to understand the (mis)alignments within and between the two professional learning communities.

Results: The findings indicate that Sean’s (subject) learning from the joint-school professional learning community to the within-school professional learning community faced multiple tensions that hindered his TPACK development (object). He faced difficulty in manipulating tools (technology and visible thinking routines) to translate the joint-school co-designed lessons into classroom implementation. Additionally, the volatility of the school’s organizational routines (rules) and the lack of communicative leader–teacher partnership (division of labor) did not afford sufficient infrastructure or instructional support.

Conclusions: Interactions between the teacher’s personal and contextual factors inhibited the designed TPACK from being implemented successfully. For ambitious pedagogical undertakings as illustrated in this case, more perceptive and synergistic organizational design thinking is needed to support beginning teachers’ TPACK development.     

Review of measurements used in computing education research and suggestions for increasing standardization

Background and context: The variables that researchers measure and how they measure them are central in any area of research, including computing education. Which research questions can be asked and how they are answered depends on measurement.

Objective: To summarize the commonly used variables and measurements in computing education and to compare them to best practices in measurement for human-subjects research.

Method: Systematic literature review analyzing 197 papers published during 2013–2017 in computing education research venues.

Findings: The review illuminates common practices related to: variables measured (including learner characteristics), measurements used, and type of data analysis. The paper lists standardized measurements that were used and highlights commonly used variables for which no standardized measures exist.

Implications: The paper concludes with information about best practices currently being used in the community that should be continued, as well as pointing out practices that could be improved along with recommendations for how to begin to adopt those best practices.     

Exploring youth engagement in agricultural development: the case of farmers’ children in the Philippines as rice crop manager infomediaries

Purpose: This paper explores the intersections between community development and youth development in an initiative that mobilized farmers’ children as Rice Crop Manager (RCM) infomediaries (information mediators). RCM is an ICT-enabled nutrient management application.

Design/Methodology/Approach: The study engaged 30 farmers’ children in high school level from the provinces of Pangasinan, Isabela, Camarines Sur, Iloilo, Bukidnon, and Davao del Norte from November 2016 to October 2017. They interacted with the research team (the authors) and the RCM-SMS platform that sends text messages regarding fertilizer recommendations. A staff member from the Agricultural Training Institute (ATI) also called the students for some follow-up questions. The research team conducted three rounds of interviews with the students concerning the messages and calls that they received and what they did with the information.

Findings: This study finds that farmers’ children can perform infomediary roles quite effectively. Academically excellent children and those involved in farm work performed best.

Practical Implications: The study provides guidance on similar initiatives tapping young people in agricultural development.

Theoretical Implications: This paper finds that while Community Youth Development (CYD) Theory provides a powerful lens in understanding community and youth development intersections, some identified outcomes may overlap and may not be very easy to observe. Hence, the identified outcomes may be revisited for clarity and to make them more all-encompassing.

Originality/Value: The paper documents actual parent-child interaction when the latter is mobilized to serve as an infomediary to access nutrient management-related information on rice.     

Becoming an agricultural advisor – the rationale,the plan and the implementation of a model of reflective practice in extension higher education

Purpose: This paper argues the rationale for a model of reflective practice in the formation of young agricultural advisors and to use this model to inform a wider discussion on the importance of the different levels of reflection in agricultural extension higher education.

Design/methodology/approach: The paper presents a model of four reflective practice modules conceived as successive building blocks in the professional development of a reflective agricultural advisor and examines the model through the lens of theory and the lens of experience of the first cohort of students to complete the programme.

Findings: Experiential learning with structured critical reflection is shown to support the integration of knowledge gained into new professional identities as agricultural advisors.

Practical Implications: Curricula for higher education in agricultural extension need to be revitalised and refreshed to address the mismatch between the emphasis on the social dimensions of extension in the literature and the general lack of attention to this in the education and formation of agricultural advisors.

Theoretical Implications: The paper presents a model of reflective practice that draws on experiences in other professions that could be applied to early career and continuing professional development for agricultural advisors.

Originality/Value: By presenting a model for reflective practice, the author intends to stimulate a wider discussion on the importance of the different levels of reflection in agricultural extension higher education.     

Using and rejecting peer feedback in the science classroom: a study of students’ negotiations on how to use peer feedback when designing experiments

Background: Research on peer assessment has noted ambiguity among students in using peer assessment for improving their work. Previous research has explained this in terms of deficits in the student feedback, or differences in student views of what counts as high-quality work.

Purpose: This study frames peer assessment as a social process in the science classroom. The aim is to explore peer assessment in science education as social practice in order to contribute to an understanding of the affordances and constraints of using peer assessment as a learning tool in science education.

Design and Method: The study was conducted in four lower secondary school classes, school years 8 and 9, in two different schools. An intervention study was designed focussing on the topic of experimental design. It involved the students in a process of peer assessment where they designed experiments individually, and then exchanged their designs, conducted each other’s experiments, provided feedback to each other and revised their original design after discussing the feedback in groups. Data were collected in the form of audio recordings of student discussions and written work.

Results: The results show that, although not all peer feedback resulted in revisions, peer feedback was useful to the students in group interaction when negotiating quality in their work.

Conclusions: To conclude, the potential for using peer assessment in science education should not only be evaluated through the students’ revisions but also in terms of in what ways the feedback constitutes interactional resources for defining quality in student work.     

Biotechnology learning in Slovenian upper-secondary education: gaining knowledge and forming attitudes

Purpose: One area of science that will increasingly influence our society is biotechnology. An increasing number of modern biotechnological applications have provoked consideration of the ethical and social issues; therefore, it is important that the public is well-informed about them. Formal education in upper-secondary schools should help students to become biotechnologically literate citizens. There is little published research data on Slovenian high-school students’ knowledge about and attitudes towards biotechnology, as well a lack of curriculum evaluation data.

Methodology: This study combines two research approaches. The first part is content analysis of current upper-secondary education programmes in Slovenia, in which all curricula were reviewed about 15 selected biotechnological topics. The second part of the research focused on assessing students’ knowledge of traditional and modern biotechnology and exploring their attitudes towards modern biotechnological methods and their products. The sample included 1163 students aged 17–18 from three different types of schools located in 12 different regions of Slovenia. A questionnaire to measure knowledge and attitudes was designed.

Results: The research results revealed that selected biotechnological concepts appeared most frequently in the curri- cula of bio-technical gymnasia. These students also showed the 30 highest level of knowledge and the most positive attitudes. Furthermore, a clear correlation between students’ knowledge of and attitudes towards modern biotechnology was found. On the other hand, no significant differences in attitudes to the state- ments, which dealt with ethics, were found among the students 35 involved in the research.

Conclusion: Biotechnology teaching in upper-secondary education in Slovenia is obviously very diverse and dependent on the programme.     

Can agricultural research and extension be used to challenge the processes of exclusion and marginalisation?

Purpose: This paper examines if and how agricultural researchers and extension officers can see, understand and change processes that exclude some people and influence marginalisation.

Design and methodology: We used participatory action research (PAR) in a programme building sustainable farming practices for nutrition and income in Solomon Islands as our case study. Two qualitative PAR data streams were analysed: (i) documentation of community activities over three years including action planning, learning activities, training workshops, focus group discussions, key informant and informal interviews and (ii) documentation of the research teams’ own learning and reflection sessions.

Findings: Agricultural research and learning activities facilitated through PAR can help researchers and extension officers see, understand and challenge processes that cause social exclusion and marginalisation and lead to inequitable access to agricultural opportunities. A combination of (i) starting with a collective vision; (ii) facilitating systematic reflection exercises; and (iii) having locally tuned facilitators creating safe spaces; makes processes of social exclusion tangible, discussable and ultimately actionable, illustrating the potential of the research and extension processes to facilitate social change in real time.

Theoretical Implications: The paper makes a contribution to the growing body of theory and literature on innovation systems and people-centred approaches to agricultural development, by highlighting the facilitation challenges and opportunities that can create more learning focused and power-aware agricultural programming.

Practical Implications: Our approach, examined in this paper, can improve implementation of policies such as the Solomon Islands Agriculture and Livestock Sector Policy (2015–2019), which aims for active participation of women and youth in agricultural development.

Originality: Using a PAR approach to discover how agricultural research and extension activities can help transform the processes that cause social exclusion and create disadvantage and marginalisation.