The Teaching of 21st Century Skills through Project-Based Learning and Professional Development for Career and Technical Education Page: 18
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CHAPTER 3
METHODOLOGY
The purpose of the research is to understand the effect of project-based learning (PBL)
usage and professional development on the teaching of 21st century skills for secondary
business teachers across the United States. This chapter includes a description of the research
design, population and sample, instrumentation, data collection, data analysis, and summary.
The following null hypothesis is studied:
H01: There is no statistically significant relationship between using PBL and teaching 21st
century skills in secondary business education.
Ho2: There is no statistically significant difference between time spent in professional
development and teaching 21st century skills in secondary business education.
H03: There is no statistically significant interaction between using PBL and time spent in
professional development on teaching 21st century skills in the secondary business
education classroom.
Research Design
This non-experimental study uses quantitative data gathered from a survey of
secondary business teachers to measure their use of projects in the classroom, levels of
professional development and teaching of 21st century skills. Based on the participant's self-
selected level of project usage of PBL and professional development, survey information was
validated and divided into equally proportioned groups.
Population
This study focused on secondary business teachers in the U.S. A report from the U.S.
Department of Labor (2017) estimates that approximately 78,840 career and technical
education (CTE) teachers are currently employed in the U.S. according to the National Center18
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Petrunin, Kristin Firmery. The Teaching of 21st Century Skills through Project-Based Learning and Professional Development for Career and Technical Education, dissertation, December 2019; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc1609129/m1/26/?q=denton+history: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .