Fostering Critical Thinking Skills Using Integrated STEM Approach among Secondary School Biology Students

Abstract

Globally, critical thinking skills have been acknowledged as an important goal of education and integrated STEM-based approaches have been reported to have the potential to enhance critical thinking. Therefore, this study examined integrated STEM instructional material for genetic learning to increase secondary school biology students’ critical thinking skills. The study adopted a quasi-experimental design, specifically a pre-test-post-test control group design. The sample size was made up of 112 students, two schools were randomly selected and assigned to the experimental and control group. The experimental group was made up of 58 students and the control group was 54. An integrated STEM approach module was developed for the experimental group, critical thinking skill test was used for pre-test and post-test data. The instrument yielded a reliability of between 0.71 - 0.76 for all the subskills of critical thinking skills. The pre-test results in all critical thinking subskills of inference, recognizing assumption, deduction, interpretation, and evaluation Wilks’ ˄ = .93, F (5, 94) = 1.370, p = (.24) > 0.05, indicating that the two groups were equivalent in their critical thinking skills before treatment. The findings of the within-group comparison show that the experimental group shows a significant difference between pre-test and post-test with a large effect size (d2=1.56) compared to the control group with a small effect size (d2=0.01). The between-group comparison using MANOVA shows a significant difference in students’ critical thinking skills of inference, recognizing assumption, deduction, interpretation, and evaluating arguments (Wilks’ ˄ = .31, F (5,106) = .68, p = (0.00) < 0.05). Therefore, it can be concluded that an integrated STEM approach was more effective in enhancing students’ critical thinking skills.

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