Part Four: Policy compliance experiment materials

Intervention Group H1 (Whip × High Accessibility) Q1 Timing First click (1) Last click (2) Page submit (3) Click count (4)

Please read the following materials and answer the relevant questions: (Note: this page will be displayed for at least 15 s before jumping to allow you to fully read the materials) The outbreak of Novel Coronavirus 2019 (COVID-19) is currently under strain. To reduce the risk of transmission, the Education Department of L Provincial Government issued an urgent notice barring students from returning to university in advance. To respond to the call, Q University announces that it will punish those who do not follow policy by recording major demerit in the university, and those who seriously violate the policy shall be transferred to the public security for disposal according to law. Besides, Q University issues the notice through official website and requires that each student be involved, by forcing each to acknowledge their acceptance of the policy via class WeChat group.

Intervention Group H2 (Sermon × High Accessibility) Q2 Timing First click (1) Last click (2) Page submit (3) Click count (4)

Please read the following materials and answer the relevant questions: (Note: this page will be displayed for at least 15 s before jumping to allow you to fully read the materials) The outbreak of Novel Coronavirus 2019 (COVID-19) is currently under strain. To reduce the risk of transmission, the Education Department of L Provincial Government issued an urgent notice barring students from returning to university in advance. To respond to the call, Q University edits slogans promoting the measure, such as “anti-epidemic situation, prevention of transmission, less going out, no going back to university”. Besides, Q University issues the notice through official website and requires that each student be involved, by forcing each to acknowledge their acceptance of the policy via class WeChat group.

Intervention Group H3 (Nudge × High Accessibility) Q3 Timing First click (1) Last click (2) Page submit (3) Click count (4)

Please read the following materials and answer the relevant questions: (Note: this page will be displayed for at least 15 s before jumping to allow you to fully read the materials) The outbreak of Novel Coronavirus 2019 (COVID-19) is currently under strain. To reduce the risk of transmission, the Education Department of L Provincial Government issued an urgent notice barring students from returning to university in advance. To respond to the call, Q University encourages students to participate in online anti-epidemic actions, such as posting “I stand for the prevention policy of university Q’ by promising not to go back to university before the situation is controlled.” Besides, Q University issues the notice through official website and requires that each student be involved, by forcing each to acknowledge their acceptance of the policy via class WeChat group.

Intervention Group H4 (Whip × Low Accessibility) Q4 Timing First click (1) Last click (2) Page submit (3) Click count (4)

Please read the following materials and answer the relevant questions: (Note: this page will be displayed for at least 15 s before jumping to allow you to fully read the materials) The outbreak of Novel Coronavirus 2019 (COVID-19) is currently under strain. To reduce the risk of transmission, the Education Department of L Provincial Government issued an urgent notice barring students from returning to university in advance. To respond to the call, Q University encourages students to participate in online anti-epidemic actions, such as posting “I stand for the prevention policy of university Q’ by promising not to go back to university before the situation is controlled.” Besides, Q University issues the notice through official website, saying that the requirements will be implemented.

Intervention Group H5 (Sermon × Low Accessibility) Q5 Timing First click (1) Last click (2) Page submit (3) Click count (4)

Please read the following materials and answer the relevant questions: (Note: this page will be displayed for at least 15 s before jumping to allow you to fully read the materials) The outbreak of Novel Coronavirus 2019 (COVID-19) is currently under strain. To reduce the risk of transmission, the Education Department of L Provincial Government issued an urgent notice barring students from returning to university in advance. To respond to the call, Q University edits slogans promoting the measure, such as “anti-epidemic situation, prevention of transmission, less going out, no going back to university”. Besides, Q University issues the notice through official website, saying that the requirements will be implemented.

Intervention Group H6 (Nudge × Low Accessibility) Q6 Timing First click (1) Last click (2) Page submit (3) Click count (4)

Please read the following materials and answer the relevant questions: (Note: this page will be displayed for at least 15 s before jumping to allow you to fully read the materials) The outbreak of Novel Coronavirus 2019 (COVID-19) is currently under strain. To reduce the risk of transmission, the Education Department of L Provincial Government issued an urgent notice barring students from returning to university in advance. To respond to the call, Q University encourages students to participate in online anti-epidemic actions, such as posting “I stand for the prevention policy of university Q’ by promising not to go back to university before the situation is controlled.” Besides, Q University issues the notice through official website, saying that the requirements will be implemented.

Intervention Group H7 (Control group × High Accessibility) Q7 Timing First click (1) Last click (2) Page submit (3) Click count (4)

Please read the following materials and answer the relevant questions: (Note: this page will be displayed for at least 15 s before jumping to allow you to fully read the materials) The outbreak of Novel Coronavirus 2019 (COVID-19) is currently under strain. To reduce the risk of transmission, the Education Department of L Provincial Government issued an urgent notice barring students from returning to university in advance. To respond to the call, Q University issues the notice through official website and requires that each student be involved, by forcing each to acknowledge their acceptance of the policy via class WeChat group.

Intervention Group H8 (Control group × Low Accessibility) Q8 Timing First click (1) Last click (2) Page submit (3) Click count (4)

Please read the following materials and answer the relevant questions: (Note: this page will be displayed for at least 15 s before jumping to allow you to fully read the materials) The outbreak of Novel Coronavirus 2019 (COVID-19) is currently under strain. To reduce the risk of transmission, the Education Department of L Provincial Government issued an urgent notice barring students from returning to university in advance. To respond to the call, Q University issues the notice through official website, saying that the requirements will be implemented.

Part Five: Manipulation check of H1 & H4

10(1). Please read the above material and make your judgment on the following statement.