Does framing influence sign up for smoking cessation resources among smokers in Moldova?

Last registered on April 16, 2024

Pre-Trial

Trial Information

General Information

Title
Does framing influence sign up for smoking cessation resources among smokers in Moldova?
RCT ID
AEARCTR-0013294
Initial registration date
April 04, 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
April 16, 2024, 11:16 AM EDT

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

Locations

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Primary Investigator

Affiliation
Paris School of Economics

Other Primary Investigator(s)

PI Affiliation
World Bank
PI Affiliation
World Bank
PI Affiliation
World Bank
PI Affiliation
World Bank
PI Affiliation
World Bank

Additional Trial Information

Status
In development
Start date
2024-04-10
End date
2024-05-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This project aims to collaborate with Ministry of Health in the Republic of Moldova with the goals of harnessing behavioral insights to design and test innovative solutions to local public health challenges. We will be focusing in particular on smoking cessation and awareness on stroke symptoms.

The survey aims to generate findings to support digital health solution to help smokers overcome barriers to quit. We will leverage techniques like precommitment, planning for obstacles, and feedback on short-term health improvements when not smoking. To understand take up of such a service, the survey experiment aims to study what the most effective messaging strategy is. We change the framing of the sign up message one a general one and a reserved spot message for treatment. The survey will be conducted on Facebook and the treatment will be randomized at the individual level. In the future, we will design and test a chatbot-based solution to support current smokers in their efforts
to quit smoking.
External Link(s)

Registration Citation

Citation
Benzerga, Amel et al. 2024. "Does framing influence sign up for smoking cessation resources among smokers in Moldova?." AEA RCT Registry. April 16. https://doi.org/10.1257/rct.13294-1.0
Experimental Details

Interventions

Intervention(s)
The survey aims to generate findings to support digital health solution to help smokers overcome barriers to quit. We will leverage techniques like precommitment, planning for obstacles, and feedback on short-term health improvements when not smoking. To
understand take up of such a service, the survey experiment aims to study what the most effective messaging strategy is. We change the framing of the sign up message one a general one and a reserved spot message for treatment. The survey will be conducted on
Facebook and the treatment will be randomized at the individual level. In the future, we will design and test a chatbot-based solution to support current smokers in their efforts to quit smoking.
Intervention Start Date
2024-04-11
Intervention End Date
2024-04-30

Primary Outcomes

Primary Outcomes (end points)
Our main outcome of interest is if the participants sign up for the chatbot, variable T24 where we vary treatment across groups. We want to understand the effect of framing sign up message that highlights reserving a spot for the chatbot as mentioned in our design. We are also interested in looking at who is likely to sign up for smoking cessation. Q1-Q8 contain demographic information about the participants. T2-T5 focus on current/ past smoking behavior including the frequency of using tobacco products which feeds into likelihood of signing up for cessation. In T7 and T8 we elicit secondary beliefs among individuals regarding the norms about smoking at home and workplace. We also elicit individuals belief on smoking in T20-T22. Understanding existing beliefs will help inform their decision to quit smoking along with intentions in T13 and T14.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
We have outcomes on smoking beliefs for past smokers and non smokers. Questions
T9-T12 focus on quitting experience for smokers. We will use this to make inference
about effectiveness of methods that are currently available
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
For the smokers, we want to create a chatbox that helps then quit smoking. They will
be exposed to two different types of framing in addition to the standard message

• Control: Standard messaging-> With the Ministry of Health, we are creating
an evidence-based chatbot to help people stop using tobacco/smoking products.
Would you like to be notified when we launch the chatbot?

• T1 : seat reserved framing -> With the Ministry of Health, we are creating an
evidence-based chatbot to help people stop using tobacco/smoking products. We
have reserved a spot for you! Don’t miss this chance. Would you like to be notified
when we launch the chatbot?
Experimental Design Details
Not available
Randomization Method
Each participant will be allocated a unique and randomly generated user identification
number and subsequently divided into two groups, corresponding to the total number
of experimental arms. The assignment of respondents to experimental groups will be
randomly assigned by a random number generator algorithm. This method ensures a
systematic and unbiased distribution of participants across the experimental conditions,
facilitating the integrity and validity of the study’s comparative analysis. This approach
will ensure that respondents are balanced across treatment arm.
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
N/A
Sample size: planned number of observations
We divide the sample evenly to include 870 respondents per experimental arm, would be requisite to achieve the desired power level. Total of 1740 participants
Sample size (or number of clusters) by treatment arms
870 Control 870 Treatment 1
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
We gathered empirical evidence from 28 distinct message framing experiments conducted across 23 countries over the last three years, facilitated through social media platforms. The determination of power was executed utilizing a one-way analysis of variance (ANOVA) power analysis, employing the ’power oneway’ command within the STATA software suite. Assuming an observed average within-group variance of 0.25, the calculation included the average outcomes of the control group and the two treatment groups that exhibited the closest means to the control. It was as 0.40 for the control group and 0.46 for the treatment group. An anticipated power level of 0.80 was established for the experiment. Consequently, we determine that a total sample size of 2,192 participants - equally split between the treatment and control arms. Assuming a survey completion rate of 90 percent, we projected that the initial sample should consist of approximately 2,436 smokers commencing the survey. Given the publicly available data indicating a tobacco usage rate of approximately 29 percent in Moldova, the initial survey outreach would encompass around 8,398 respondents to ensure the targeted sample size is met.
Supporting Documents and Materials

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IRB

Institutional Review Boards (IRBs)

IRB Name
Human Subjects Research Ethics Approval
IRB Approval Date
2024-03-21
IRB Approval Number
2500
Analysis Plan

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