Frequency of Swab Tests Completed Step Predictor β B Basis Step 1 (force wise) Gender −0.088 −0.815 0.538 Year of Study −0.848 *** −1.952 0.134 ∆R2 0.707 *** Step 2 (stepwise) Gender −0.070 −0.648 0.513 Year of Study −0.821 *** −1.891 0.129 Anxiety (GAD-7) −0.180 ** −0.129 0.040 ∆R2 0.031 ** Step 3 (stepwise) Gender −0.115 * −1.062 0.499 Year of Study −0.868 *** −1.999 0.125 Anxiety (GAD-7) −0.296 *** −0.213 0.045 Worry about getting COVID-19 0.227 ** 1.384 0.400 ∆R2 0.032 ** Step 4 (stepwise) Gender −0.098 −0.907 0.494 Year of Study −0.846 *** −1.949 0.125 Anxiety (GAD-7) −0.244 *** −0.175 0.047 Worry about getting COVID-19 0.205 ** 1.254 0.397 Satisfaction with the way information was communication −0.118 * −0.723 0.344 ∆R2 0.011 * (Constant) 17.623 *** 1.22