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Field Before After
Trial Status in_development completed
Last Published August 10, 2016 08:27 AM September 22, 2017 10:05 PM
Study Withdrawn No
Intervention Completion Date July 25, 2016
Data Collection Complete Yes
Final Sample Size: Number of Clusters (Unit of Randomization) The partner bank called the 581 customers owning a "gold card" to offer them the "platinum card" as a higher-end card. However, the partner bank decided to cancel the marketing phone calls to the 865 customers owning a "platinum card." The partner bank was able to reach 203 out of the 581 customers. However, based on the records of the calls, we found out later that the callers failed to follow our protocol for the experiment in 36 out of these 203 calls, yielding a final sample size of 167 customers.
Was attrition correlated with treatment status? No
Final Sample Size: Total Number of Observations 167 customers
Final Sample Size (or Number of Clusters) by Treatment Arms (1) premium card and self-esteem question N=34, (2) premium card and TV question N=43, (3) non-premium card and self-esteem question N=46, and (4) non-premium card and TV question N=44.
Data Collection Completion Date July 25, 2016
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