The original hypothesis: not the reason for the change

F value

P value

Conclusion

Traditional Media ® Policy Agenda

15.261

0.006

Refuse

Policy Agenda ® Traditional Media

2.306

0.28

Accept

Online Media → Policy Agenda

11.481

0.001

Refuse

Policy Agenda ® Internet Media

0.712

0.499

Accept

Traditional Media ® Online Media

4.435

0.022

Refuse

Online Media ® Traditional Media

11.672

0.000

Refuse