Study: NCT01746472

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition t
Description: Application components hypothesized to increase the duration (t, time) that a participant spends using the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition t
Description: Application components hypothesized to increase the duration (t, time) that a participant spends using the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition t
Description: Application components hypothesized to increase the duration (t, time) that a participant spends using the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition t
Description: Application components hypothesized to increase the duration (t, time) that a participant spends using the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition t
Description: Application components hypothesized to increase the duration (t, time) that a participant spends using the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition t
Description: Application components hypothesized to increase the duration (t, time) that a participant spends using the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition z
Description: Application components hypothesized to increase the number of friends that a user has that are eligible to install the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition z
Description: Application components hypothesized to increase the number of friends that a user has that are eligible to install the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition z
Description: Application components hypothesized to increase the number of friends that a user has that are eligible to install the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition z
Description: Application components hypothesized to increase the number of friends that a user has that are eligible to install the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition z
Description: Application components hypothesized to increase the number of friends that a user has that are eligible to install the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition z
Description: Application components hypothesized to increase the number of friends that a user has that are eligible to install the application.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-active
Description: Application components hypothesized to increase the contagiousness of the app by increasing a users ability and desire to proactively contact others.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-active
Description: Application components hypothesized to increase the contagiousness of the app by increasing a users ability and desire to proactively contact others.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-active
Description: Application components hypothesized to increase the contagiousness of the app by increasing a users ability and desire to proactively contact others.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-active
Description: Application components hypothesized to increase the contagiousness of the app by increasing a users ability and desire to proactively contact others.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-active
Description: Application components hypothesized to increase the contagiousness of the app by increasing a users ability and desire to proactively contact others.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-active
Description: Application components hypothesized to increase the contagiousness of the app by increasing a users ability and desire to proactively contact others.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-active
Description: Application components hypothesized to increase the contagiousness of the app by increasing a users ability and desire to proactively contact others.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-active
Description: Application components hypothesized to increase the contagiousness of the app by increasing a users ability and desire to proactively contact others.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-passive
Description: Application components hypothesized to increase the contagiousness of the app by increasing the passive diffusion of information from the user to their friends.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-passive
Description: Application components hypothesized to increase the contagiousness of the app by increasing the passive diffusion of information from the user to their friends.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-passive
Description: Application components hypothesized to increase the contagiousness of the app by increasing the passive diffusion of information from the user to their friends.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-passive
Description: Application components hypothesized to increase the contagiousness of the app by increasing the passive diffusion of information from the user to their friends.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-passive
Description: Application components hypothesized to increase the contagiousness of the app by increasing the passive diffusion of information from the user to their friends.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-passive
Description: Application components hypothesized to increase the contagiousness of the app by increasing the passive diffusion of information from the user to their friends.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Facebook app - condition B-passive
Description: Application components hypothesized to increase the contagiousness of the app by increasing the passive diffusion of information from the user to their friends.