Testing the impact of nudging on retaining clients on a mental health platform

Last registered on March 06, 2025
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Pre-Trial

Trial Information

General Information

Title
Testing the impact of nudging on retaining clients on a mental health platform
RCT ID
AEARCTR-0014884
Initial registration date
December 09, 2024

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
December 12, 2024, 11:40 AM EST

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Last updated
March 06, 2025, 2:21 AM EST

Last updated is the most recent time when changes to the trial's registration were published.

Locations

Country
Singapore
Region

Primary Investigator

Name
Guang Cheng
Affiliation
Contact Primary Investigator

Other Primary Investigator(s)

Additional Trial Information

Status
In development
Start date
2025-04-01
End date
2025-10-31
Keywords
Behavior, Health
Additional Keywords
JEL code(s)
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
In this experiment, we aim to test the impact of various information nudges on customer retention rate on a mental health platform. We have 4 groups of customers: (i) control group in which customers will not receive any information; (ii) base reminder group in which customers will receive a reminder to book a follow-up appointment; (iii) social information group in which customers will receive the base reminder and some additional social information; (iv) recommendation information group in which customers will receive the base reminder and additional recommendation information about the frequency of therapy sessions. Our target is to compare which intervention is the most effective in persuading customers to book follow-up appointments, potentially improving their mental health conditions.
External Link(s)

Registration Citation

Citation
Cheng, Guang. 2025. "Testing the impact of nudging on retaining clients on a mental health platform." AEA RCT Registry. March 06. https://doi.org/10.1257/rct.14884-1.1
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention (Hidden)
Intervention Start Date
2025-04-01
Intervention End Date
2025-10-31

Primary Outcomes

Primary Outcomes (end points)
whether the customers book a follow-up appointment, and how many follow-up appointments they book in total during the experiment period
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
(i) control group in which customers will not receive any information; (ii) base reminder group in which customers will receive a reminder to book a follow-up appointment; (iii) social information group in which customers will receive the base reminder and some additional social information; (iv) recommendation information group in which customers will receive the base reminder and additional recommendation information about the frequency of therapy sessions.
Experimental Design Details
Randomization Method
Customers will be assigned into certain groups based on the day they enter the experiment. In particular, we will split time into week blocks. Each week is randomly assigned to one of the arms. Customers who enter the experiment in a certain week will be assigned to the corresponding group.
Randomization Unit
week level
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
31
Sample size: planned number of observations
4000
Sample size (or number of clusters) by treatment arms
1000 per group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
NUS Business School
IRB Approval Date
2024-12-09
IRB Approval Number
N/A
Analysis Plan

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials