Nurses at Lynchburg General plan to implement a new training program for nursing aids to deal with stress. To test the effectiveness of the training program, a 2x2 design was used. The nurses reported the following statistical statement: 2(1, N = 12) = 2.71, p = .62. They concluded that _______.

There was no significant difference

There was a significant difference

There was a large effect size

statistical statement: 2(1, N = 12) = 2.71, p = .62. They concluded that _______.