AEA RCT Registry

Fields Changed

Registration

Field	Before	After
Trial Status	in_development	completed
Trial End Date	August 31, 2021	July 07, 2023
Last Published	July 01, 2021 08:30 PM	December 25, 2023 08:03 PM
Study Withdrawn		No
Intervention Completion Date		July 07, 2023
Data Collection Complete		Yes
Final Sample Size: Number of Clusters (Unit of Randomization)		5,000 married individuals aged between 25 and 64.
Was attrition correlated with treatment status?		No
Final Sample Size: Total Number of Observations		5,000 married individuals aged between 25 and 64.
Final Sample Size (or Number of Clusters) by Treatment Arms		First batch: among subjects who receive the information treatment, 486 are in the "no disagreement" condition, 499 are in the "more optimistic" condition, and 464 are in the "more optimistic" condition; among subjects who do not receive the information treatment, 525 are in the "no disagreement" condition, 495 are in the "more optimistic" condition, and 531 are in the "more optimistic" condition. For the second batch, among subjects who are informed about their spouses' beliefs, 316 are in the "no disagreement" condition, 343 are in the "more optimistic" condition, and 321 are in the "more optimistic" condition; among subjects who are informed about a stranger's belief, 350 are in the "no disagreement" condition, 311 are in the "more optimistic" condition, and 359 are in the "more optimistic" condition
Is there a restricted access data set available on request?		No
Program Files		No
Data Collection Completion Date		July 07, 2023
Is data available for public use?		No
Intervention End Date	August 31, 2021	July 07, 2023
Randomization Method	Qualtrics will randomize respondents into one of the two information conditions as well as one of the three disagreement conditions.	For the first batch, Qualtrics will randomize respondents into one of the two information conditions as well as one of the three disagreement conditions. For the second batch, Qualtrics will randomize respondents into one of the two sender conditions as well as one of the three disagreement conditions.
Planned Number of Clusters	3,000 married individuals aged between 25 and 64.	3,000 married individuals aged between 25 and 64 for the first batch in 2021, and another 2,000 for the second batch in 2023.
Planned Number of Observations	3,000 married individuals aged between 25 and 64.	3,000 married individuals aged between 25 and 64 for the first batch in 2021, and another 2,000 for the second batch in 2023.
Sample size (or number of clusters) by treatment arms	Approximately 500 subjects in each of the 3 x 2 (i.e., disagreement x information) condition, totaling 3,000 individuals. Given the uncertainty of the number of married workers aged between 25 and 64 available on mTurk, I plan to recruit subjects every weekday from 9 am to 5 pm (Eastern time) starting from July 12. 2021 (i.e., the first Monday after the July 4th long weekend) till the end of August 2021. The recruiting process will end when the sample size reaches 3,000 or on August 31, 2021, whichever is earlier.	For the first batch, approximately 500 subjects in each of the 3 x 2 (i.e., disagreement x information) condition, totaling 3,000 individuals. Given the uncertainty of the number of married workers aged between 25 and 64 available on mTurk, I plan to recruit subjects every weekday from 9 am to 5 pm (Eastern time) starting from July 12. 2021 (i.e., the first Monday after the July 4th long weekend) till the end of August 2021. The recruiting process will end when the sample size reaches 3,000 or on August 31, 2021, whichever is earlier. For the second batch, approximately 333 subjects in each of the 3 x 2 (i.e., disagreement x sender) condition, totaling 2,000 individuals. The same recruiting procedure as the first batch from May 30, 2023 to July 7, 2023.
Public analysis plan	No	Yes
Building on Existing Work		No