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Study Overview

Title:
Measles Vaccination Cash Incentives: Experimental Evidence from Nigeria
Study ID:
RIDIE-STUDY-ID-5a394db3018d0
Initial Registration Date:
12/19/2017
Last Update Date:
07/08/2017
Study Status:
Ongoing
Location(s):
Nigeria
Abstract:
IDinsight is conducting a randomized controlled trial to assess the impact of various sized cash incentives for caretakers of infants that require a 9-month measles vaccination on the completion rate for the vaccine in Nigeria. The purpose of the experiment is to help New Incentives (NI) determine the optimal size of the incentive as they scale to the North West region of Nigeria.
Categories:
Health, Nutrition, and Population
Additional Keywords:
Vaccination, conditional cash transfer, measles, Africa, Nigeria, incentives
Secondary ID Number(s):

Principal Investigator(s)

Name of First PI:
surili.sheth@idinsight.org Sheth
Affiliation:
IDinsight
Name of Second PI:
Daniel Stein
Affiliation:
IDinsight

Study Sponsor

Name:
Good Ventures
Study Sponsor Location:
United States
Funding Proposal:

Research Partner

Name of Partner Institution:
New Incentives
Type of Organization:
NGO-international
Website:
http://www.newincentives.org/
Location:
United States
Intervention

Intervention Overview

Intervention:
New Incentives hopes to overcome individual barriers to vaccination by offering mothers a conditional cash transfer for vaccinating their babies. This is based on evidence that small incentives can have a large impact on health behaviors like immunization rates (Banerjee et al 2010), and evidence that that this finding could apply to immunizations in Nigeria (Sato 2014) (New Incentives 2017). New Incentives will administer conditional cash transfer amounts of 2000, 3000, 4000, 5000, and 6000 Naira to different mothers in 9 pilot clinics across 3 states of Nigeria. The mothers have been randomized into experimental treatment groups to determine which mothers are offered which cash amount.
Theory of Change:
Multiple Treatment Arms Evaluated?
Yes

Implementing Agency

Name of Organization:
New Incentives
Type of Organization:
NGO (International)

Program Funder

Name of Organization:
GiveWell
Type of Organization:
NGO (International)

Intervention Timing

Intervention or Program Started at time of Registration?
Yes
Start Date:
05/01/2017
End Date:
07/31/2017
Evaluation Method

Evaluation Method Overview

Primary (or First) Evaluation Method:
Randomized control trial
Other (not Listed) Method:
Additional Evaluation Method (If Any):
Other (not Listed) Method:

Method Details

Details of Evaluation Approach:
NI will call randomly selected mothers with infants due for measles vac and inform some that they will receive a larger incentive than they were originally told; some will just receive reminder calls. Mothers are divided into two groups. In Model 1 clinics, mothers are expecting a 2,000 Naira incentive for measles. In Model 2 clinics, they are expecting a 3,000 Naira incentive for the same. The treatment arms are: (1) Status quo: Model 1: 2,000 Naira incentive without a reminder call, Model 2: 3,000 Naira incentive without a reminder call (2) Reminder call: Model 1: 2,000 Naira incentive with a reminder call, Model 2: 3,000 Naira incentive with a reminder call (3) 1000 Naira Bonus: Model 1: 3,000 Naira incentive with a reminder call, Model 2: 4,000 Naira incentive with a reminder call (4) 3000 Naira Bonus: Model 1: 5,000 Naira incentive with a reminder call, Model 2: 6,000 Naira incentive with a reminder call A randomized controlled trial (RCT) will be employed to establish causal impact of different incentive amounts on probability of a mother completing measles visit. Final analysis will be done using a Linear Probability Model (LPM) specification.
Outcomes (Endpoints):
The outcome of interest is completion of the measles vaccine during the study period.
Measurement:
Unit of Analysis:
Individuals - caretakers of infants due for measles vaccination during study period
Hypotheses:
1. Does a phone call reminder result in higher measles vaccination rates? 2. Which incentive amount results in the highest likelihood of completing the measles vaccination during the study period?
Unit of Intervention or Assignment:
Individuals - caretakers of infants due for measles vaccination during study period
Number of Clusters in Sample:
Number of Individuals in Sample:
1088 caretakers
Size of Treatment, Control, or Comparison Subsamples:
(1) Status quo: 273 caretakers, (2) Reminder call: 272 caretakers, (3) 1000 Naira Bonus: 271 caretakers, (4) 3000 Naira Bonus: 272 caretakers

Supplementary Files

Analysis Plan:
Measles PAP 07july2017 SS vF.pdf
Other Documents:
Data

Outcomes Data

Description:
New Incentives electronic administrative data: contains information including: clinic, unique ID, DOB of the infant, vaccination date for each vaccination received at the clinic (inputted from the child health card), amount received for each vaccination, date provided to caretaker for the next vaccination, caretaker phone number and follow-up address, and transportation cost for the caretaker to come to the clinic. Phone data: has information on who was called when, and if calls were picked up
Data Already Collected?
No
Survey Name:
Data Previously Used?
Data Access:
Data Obtained by the Study Researchers?
Data Approval Process:
Approval Status:

Treatment Assignment Data

Participation or Assignment Information:
Yes
Description:
Data Obtained by the Study Researchers?
Data Previously Used?
Data Access:
Data Obtained by the Study Researchers?
Data Approval Process:
Approval Status:

Data Analysis

Data Analysis Status:

Study Materials

Upload Study Materials:

Registration Category

Registration Category:
Prospective, Category 1: Data for measuring impacts have not been collected
Completion

Completion Overview

Intervention Completion Date:
Data Collection Completion Date:
Unit of Analysis:
Clusters in Final Sample:
Total Observations in Final Sample:
Size of Treatment, Control, or Comparison Subsamples:

Findings

Preliminary Report:
Preliminary Report URL:
Summary of Findings:
Paper:
Paper Summary:
Paper Citation:

Data Availability

Data Availability (Primary Data):
Date of Data Availability:
Data URL or Contact:
Access procedure:

Other Materials

Survey:
Survey Instrument Links or Contact:
Program Files:
Program Files Links or Contact:
External Link:
External Link Description:
Description of Changes:

Study Stopped

Date:
Reason: