Back to History

Fields Changed

Registration

Field Before After
Trial Status in_development completed
Last Published October 27, 2020 06:39 AM October 17, 2021 02:57 AM
Study Withdrawn No
Intervention Completion Date December 21, 2020
Data Collection Complete Yes
Final Sample Size: Number of Clusters (Unit of Randomization) 630 individuals in the experiment using mailed letters 1287764 Facebook users (Impression) in the experiment using Facebook ads.
Was attrition correlated with treatment status? No
Final Sample Size: Total Number of Observations 630 individuals in the experiment using mailed letters 1287764 Facebook users (Impression) in the experiment using Facebook ads.
Final Sample Size (or Number of Clusters) by Treatment Arms Mailed letter / Facebook - Control: 210 members (Mailed letter) / 320332 Impressions (Facebook) - Seed money: 210 members (Mailed letter) / 463107 Impressions (Facebook) - Ecological: 210 members (Mailed letter) / 504325 Impressions (Facebook)
Is there a restricted access data set available on request? Yes
Restricted Data Contact [email protected]
Program Files No
Data Collection Completion Date December 21, 2020
Is data available for public use? No
Keyword(s) Environment And Energy Environment And Energy
Building on Existing Work No
Back to top