Computational thinking (CT) practices is a critical cognitive tool for students to overcome challenges in this technological era. Few studies investigated CT practices from a development perspective. A two-year intervention was implemented in 30 intervention and 22 control schools in Hong Kong to promote CT education (T1baseline: N = 13,056; T2: N = 16,367; and T3: N = 15,269). Senior primary students (grades 4 to 6) around 8–12 years old were targeted. Among them, 34% were girls at T1baseline. Their learning progression of cognitive development was assessed with a CT practices test. Data were analyzed using item response analysis. Learning trajectories of CT practices were modeled to understand how students’ cognitive development differed between schools. Insights of findings were discussed in bringing CT practices to life. Copyright © 2023 Elsevier Ltd. All rights reserved.

Programming is perceived to be an indispensable type of literacy in the digital era. To effectively promote and implement programming in K–12 education, it is necessary to understand school principals' perception of programming education. This study adopted a mixed methods design to explain principals' understanding, expectations, and support for programming education in primary schools using Theory of Reasoned Action (TRA). In study 1, survey questionnaires were distributed to all principals from public primary schools in Hong Kong. Two hundred and sixty-six principals responded to the survey (response rate = 55.6%). In study 2, a follow-up interview study with 13 principals was conducted to further explore their perception of programming education. The results of study 1 indicated that principals with a better understanding of programming education tend to have clearer expectations of how to implement programming education in their schools, which consequently leads to greater support for the implementation of programming education. In study 2, the thematic analysis further supported the results obtained in study 1. Specifically, the results of study 2 demonstrated that most principals show understanding, expectation, and support for the implementation of programming education, which in turn results in various positive student and teacher outcomes. The results also showed that challenges are inevitable during implementation, principals show capabilities and willingness to adjust their expectation and support to better integrate programming education into their school curricula. Copyright © 2021 Elsevier Ltd. All rights reserved.

Computational thinking (CT) practices have gained increasing importance in primary school education. However, there are few tools to measure primary school students' CT practices that are based on rigorous psychometric approaches. This study developed an operational definition for CT practices by exploring the key dimensions of their composition and, more importantly, developed and validated a generic test tool that can effectively assess students’ CT practices. Items to measure CT practices were developed using the evidence-centered design (ECD) approach. These items prompted students to exhibit behaviors that demonstrated their skills in the four dimensions of CT practice, namely testing and debugging, algorithmic thinking, reusing and remixing, and abstracting and modularizing. A test consisting of these items was administered to 13,956 Grade 4–6 primary school students from 56 public schools in Hong Kong. The data were analyzed based on the item response theory (IRT) approach, together with other psychometric tests. A bi-factor three-parameter logistic model was ultimately adopted for test validation, as it fitted the data better than the corresponding two-parameter and one-parameter logistic models. The results validated the four-dimensional structure of the CT practices test. The reliability, test item characteristics, and CT practice abilities of students are also discussed. Copyright © 2021 Elsevier Ltd. All rights reserved.

This study aims to establish a robust measurement to obtain a comprehensive understanding of perceptions of programming education (POPE) of teacher and principal groups. In this study, the POPE scale contains three dimensions: (a) understanding in programming (UP), (b) support for programming (SP), and (c) expectation of programming (EP). Self-reported questionnaires were administrated among 258 teachers and 229 principals. Multigroup analyses were used among the two groups. The results of measurement invariance tests show that configural and metric invariance are fully supported, and scalar invariance is partially supported, suggesting the factor structures, loadings, and most item intercepts of the POPE scale are equivalent across the groups examined. Implications of the study are discussed.
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http://dx.doi.org/10.1177/0734282918787670]