Fig. 4From: A systematic review of high impact empirical studies in STEM educationDistribution of highly cited research articles across different journal categories over the years. (Note: 0 = journals without STEM discipline specified, 1 = journals with a single discipline of STEM specified, 2 = journals with two disciplines of STEM specified, 3/4 = journals with 3 or 4 disciplines of STEM specified.)Back to article page