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A list of articles used in the meta-analysis
Out of 26 articles on knowledge, 19 articles were analyzed after articles #7, #9, #14, #17, #18, #19, and #25 were removed based on the homogeneity test. Out of 6 articles on attitude, 4 articles were analyzed after articles #17 and #25 were removed based on the homogeneity test. Out of 11 articles on achievement, 8 articles were analyzed after articles #9, #17, and #25 were removed based on the homogeneity test.
