Baron and Kenny's (1986) causal steps approach has been widely used by researchers in mediation analyses. Yet, recently, some researchers have begun to argue that Baron and Kenny's approach is not an appropriate method for mediation analysis, and that contemporary or new methods that are based on bootstrapping would yield more valid and reliable results in mediation analysis. The aim of the current study was to discuss basic assumptions between the causal steps approach and new approach in mediation analysis and show statistical differences between the two approaches by using real data set. As a result, it can be stated that the validity of the causal steps approach, which has been used extensively in the analysis of mediation models until today, is controversial, and the use of a new approach based on the bootstrap technique in psychology and behavior research may bring more valid results.
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Changes, challenges and expectations of society call for ongoing professional development of teachers. However, in many schools ongoing professional development cannot be taken for granted. Many governmental, local or institutional policies aim at stimulating teachers’ professional development, but many of these policies have a limited impact. To reach a deeper understanding of this problem casual loop diagrams (Salmon et al, 2022) can be helpful as they visualize how different parts and processes in an organisation are interrelated and either strengthen of weaken one another. Causal loop diagrams originate from the field of system thinking where they are used to understand wicked problems in complex systems (Bore & Wright, 2009; Groff, 2013; Vermaak, 2016). Causal loop diagrams can illustrate how elements like the structure of the profession and of schools, cultures in schools, collegial dynamics, etc are interconnected and can reinforce each other in a positive or negative way. From our observations in schools and from many discussions with teachers and school leaders we developed causal loop diagrams and validated these in literature. Our next step will be to validate the causal loop diagrams in practices in schools through focus group interviews in a variety of schools. In this session we will present some of the causal loop diagrams we developed, the patterns they illustrate and the underlying theory that support these patterns. Additionally, we will discuss to what extend these patterns are unique for the Dutch context in which we developed them, and the extent in which they can also be recognized in other counties and contexts. Finally we will discuss the way in which working with causal loop diagrams can support teachers, schools and teacher educators that collaborate with schools to identify patterns that hinder a systemic approach for ongoing professional development.
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Over the last two decades, institutions for higher education such as universities and colleges have rapidly expanded and as a result have experienced profound changes in processes of research and organization. However, the rapid expansion and change has fuelled concerns about issues such as educators' technology professional development. Despite the educational value of emerging technologies in schools, the introduction has not yet enjoyed much success. Effective use of information and communication technologies requires a substantial change in pedagogical practice. Traditional training and learning approaches cannot cope with the rising demand on educators to make use of innovative technologies in their teaching. As a result, educational institutions as well as the public are more and more aware of the need for adequate technology professional development. The focus of this paper is to look at action research as a qualitative research methodology for studying technology professional development in HE in order to improve teaching and learning with ICTs at the tertiary level. The data discussed in this paper have been drawn from a cross institutional setting at Fontys University of Applied Sciences, The Netherlands. The data were collected and analysed according to a qualitative approach.
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