Scam Identification Ability (Pilot)

Last registered on December 19, 2022


Trial Information

General Information

Scam Identification Ability (Pilot)
Initial registration date
January 14, 2022

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
January 19, 2022, 4:56 PM EST

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

Last updated
December 19, 2022, 7:16 AM EST

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


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Primary Investigator

RWTH Aachen University and University of Essex

Other Primary Investigator(s)

PI Affiliation
Max Planck Institute for Tax Law and Public Finance
PI Affiliation
University of Essex
PI Affiliation
Aix-Marseille University

Additional Trial Information

On going
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
The recent expansion in digital financial service (DFS) and related technologies in developing countries has opened the door to many issues related to consumer protection, including fraud. Fraud creates direct costs for affected consumers and can erode trust in specific providers or entire markets. The project focuses on phone scams, the most prevalent form of fraud related to DFS in Kenya. Using mixed methods, we develop a measure of scam identification ability (SIA) and implement in a large-scale online survey in Kenya.
External Link(s)

Registration Citation

Cahlíková, Jana et al. 2022. "Scam Identification Ability (Pilot)." AEA RCT Registry. December 19.
Sponsors & Partners

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Experimental Details


Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
Scam identification ability (SIA), confidence in SIA
Primary Outcomes (explanation)
SIA: share of correctly identified messages; confidence: average confidence rating

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
In a cross-randomized, 2x2 design, we vary whether participants receive 1) information about how to identify scams and 2) incentives for correctly identifying scams. The control group receives neither information nor incentives.
Experimental Design Details
Not available
Randomization Method
Randomization within Qualtrics
Randomization Unit
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
1000 individuals
Sample size: planned number of observations
1000 survey respondents
Sample size (or number of clusters) by treatment arms
i) ca. 250 information treatment,
ii) ca. 250 incentives,
iii) ca. 250 information treatment + incentives,
iv) ca. 250 control group: neither information treatment nor incentives
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Institutional Review Boards (IRBs)

IRB Name
University of Essex, Ethics Sub Committee 1
IRB Approval Date
IRB Approval Number
IRB Name
IPA Institutional Review Board
IRB Approval Date
IRB Approval Number
IRB # 3896
Analysis Plan

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