Fig. 2

a Percentage of biology majors (black bars, n = 237) and nonmajors (white bars, n = 239) who think one of the following statements fits best their position concerning evolution: A = hearing about evolution makes me appreciate the factual explanation about the origin of life on Earth and its place in the universe, B = hearing about evolution makes no difference to me because evolution and creationism are in harmony, C = do not know enough to say, D = hearing about evolution makes me uncomfortable because it is in conflict with my faith, and E = hearing about evolution makes me realize how wrong scientists are concerning explanations about the origin of life on Earth and the universe. Raw data chi-square = 19.725, df = 4, P ≤ 0.001; asterisks indicate Sign test two-tail pair-wise comparisons A—P value = 0.056, C—P value ≤ 0.01. b Percentage of freshman (F), sophomore (So), junior (J), and senior (Sr) biology majors who think statements A, B, or C (above) fit best their position concerning evolution (D and E were excluded from the analysis because over 20% of their expected values were less than 5). Chi-square of percentage values = 17.418, df = 6, P value = 0.008