pág. 6600
Creswell, J. W., & Creswell, J. D. (2018). *Research Design: Qualitative, Quanti-tative, and Mixed
Methods Approaches. Sage publications.
Devellis, R. F. (2016). *Scale Development: Theory and Applications. SAGE Publications.
Dewey, J. (1938). Experience and education. The Macmillan company.
Dochy, F., Segers, M., Van Den Bossche, P., & Gijbels, D. (2003). Effects of prob-lem-based learning:
A meta-analysis. *Learning and Instruction*, 13, 533–568.
Dolmans, D. H. J. M., De Grave, W., Wolfhagen, I. H. A. P., & van der Vleuten, C. P. M. (2005).
Problem-based learning: future challenges for educational practice and research. Med. Educ.,
39(7), 732–741.
Etikan, I., Musa, S. A., & Alkassim, R. S. (2016). Comparison of Convenience Sampling and Purposive
Sampling. *American Journal of Theoretical and Ap-Plied Statistics*, 5(1), 1–4.
Field, A. (2013). *Discovering Statistics Using IBM SPSS Statistics. SAGE Publications.
Freeman, S., Eddy, S. L., McDonough, M., Smith, M. K., Okoroafor, N., Jordt, H., & Wenderoth, M.
P. (2014). Active learning increases student performance in science, engineering, and mathemat-
ics. Proc. Natl. Acad. Sci. U. S. A., 111(23), 8410–8415.
Grootenboer, P., & Marshman, M. (2016). Mathematics, affect and learning: Middle school students’
beliefs and attitudes about mathematics education. Springer Singapore.
Harmer, N., & Stokes, A. (2016). The Benefits and Challenges of Project-Based Learning: A Review
of the Literature. The Plymouth Student Scientist, 9(1), 109–120.
Hattie, J. (2009). Visible Learning: A Synthesis of Over 800 Meta-Analyses Re-lating to Achievement.
Hmelo-Silver, C. E. (2004). Problem-based learning: What and how do students learn? Educ. Psychol.
Rev., 16(3), 235–266.
Hmelo-Silver, C. E., & Barrows, H. S. (2006). Goals and strategies of a problem-based learning facili-
tator. Interdiscip. J. Probl.-Based Learn., 1(1).
Hung, M.-L., & Tsai, C.-W. (2020). Problem-based learning in teacher education: Edited by Margot
Filipenko and Jo-Anne Naslund, Switzerland, Springer International Publishing, 2016, 241 pp.,
$139 (hardcover), ISBN 978-3-319-02002-0. High. Educ. Res. Dev., 39(5), 1070–1072.