approaching significancep = 0.077
The proportion of stories citing a university professor also increased significantly from 8.2% before 2015 to 31.3% after (χ 2 = 9.14, df = 1, p = 0.003, φ = 0.30), and the proportion citing a healthcare professional decreased from 15.1% to 3.1%, approaching significance (χ 2 = 3.14, df = 1, p = 0.077, φ = 0.17). 2.3.